Re: help, man, etc. (was: Re: Using terminal commands - corner cases)

2024-11-27 Thread Max Nikulin

On 27/11/2024 23:59, to...@tuxteam.de wrote:

OTOH, the venerable groff has gained a hyperlink markup
recently [1] ("recently" in its time scale), thus bridging yet another
gap separating man and info.


Does it affect "man" when called in a terminal application (so usually 
"less" is used as a pager)? At least Emacs and Vim use heuristics with 
plenty of shortcomings to recognize cross-references to other man pages 
(https://manpages.debian.org - debiman works better because it has index 
of man pages from all packages). It is even worse with links to other 
sections and to notes in the same document.


doc-base maintains some document index for yelp/khelpcenter/dhelp/dochelp.



Re: Adding a new boot disk while keeping old disk

2024-11-27 Thread eben
On 11/26/24 01:03, Charlie Gibbs wrote:

> But there are no icons left on the desktop - no more Portal, and none of
> the utilities I downloaded were on my $PATH.
>
> How do the rest of you deal with all the user-added stuff that vanishes
> when you do a fresh install?  Are there some tricks I can use, rather
> than painstakingly re-installing all my utilities one by one?

If they were installed through a package manager, you probably shouldn't do
that.

> I assume you can just copy the old /home over to the new drive

Mind the dotfiles.  Apps might behave strangely when you run them with an
old config file.

> But that does nothing about all the nifty utilities that
> were in (e.g.) /usr/bin (even though the configuration files are probably
> in /home).

I hate losing stuff and drastic changes like that, so what I've done in
the past when I used Ubuntu was:

* do a complete backup
* clean-install the latest *-LTS version
* restore /home, being careful not to overwrite existing dotfiles
* restore any other filesystems that aren't part of the base install
* modify /etc/profile.d/* to change $PATH as appropriate
* keep the installation as long as possible.

The last time I went through this I made a list of installed packages (apt
list --installed) so I could re-install (some of) them on the new OS.

This probably is not the recommended procedure.  Since I switched to Debian
the issue hasn't come up, so I haven't yet been forced into a decision as to
how to deal with it.




Re: Using terminal commands - corner cases

2024-11-27 Thread David Wright
On Wed 27 Nov 2024 at 05:38:30 (-0600), Richard Owlett wrote:
> I've used terminal commands for so many decades I don't know where to
> look up fine details of a specific commands.
> 
> I just tried to use the cd command with a target directory having
> spaces in it's name. Of course the system responded
>  > bash: cd: too many arguments
> 
> DuckDuckGo led to [ 
> https://bash.cyberciti.biz/guide/Cd_command#Dealing_with_directories_with_white_space_in_their_names
> ].
> 
> Problem solved. But is there somewhere to go directly without a web search?

Well, it strikes me that, with the exception of Greg's, all these
posts are about man, info, help, etc., which you probably know
about already, whereas what your error above shows is that you
need some passing knowledge of the contents of man bash.

If you find that rather dry and indigestible, you might try running:

  $ wget http://folk.ntnu.no/geirha/bashguide.pdf

which gives you a guide that's designed more for reading than
as a reference document.

BTW I find large man pages a little more navigable by running, eg:

  $ man -t bash | ps2pdf - /tmp/bash.pdf

though that might not be suitable for the OP.

Cheers,
David.



Re: WHOIS rejection from strange IP address

2024-11-27 Thread Lee
On Wed, Nov 27, 2024 at 4:27 AM George at Clug wrote:
>
> Curiosity got the better of me, so I installed "whois" and gave it a try.
>
> Below are the responses I get, for "$whois 191.96.36.56"  and I tried a whois 
> on the ip in "%ERROR:201: access denied for 190.112.52.14"
>
> I wonder what this information might mean to anyone? How would this 
> information be useful?

You get their tech contact, so you can ask about problems accessing
something in their network or let them know about their open ntp
server that can be used for DOS attacks or .. whatever.

You also get their abuse contact info so you know where to direct
emails about abusive behavior from that ip address range.

If whois will look up handles you can lookup the abuse handle.
I can't figure out how to do that so
  https://search.arin.net/rdap/?query=162.142.125.0

which gives me their abuse info
  https://about.censys.io/

which leads to
  
https://support.censys.io/hc/en-us/articles/360043177092-Opt-Out-of-Data-Collection

which allows me to "opt-out" of their abusive scanning by putting
their list of subnets into my firewall block list.

Regards,
Lee



Re: help, man, etc. (was Re: Using terminal commands - corner cases)

2024-11-27 Thread tomas
On Wed, Nov 27, 2024 at 11:03:48AM -0500, Greg Wooledge wrote:
> On Wed, Nov 27, 2024 at 10:40:44 -0500, The Wanderer wrote:
> > One of the items on the list, under the characteristics of a
> > "knowledgeable user", is the entry:
> > 
> > * has learned that learn doesn't help
> > 
> > I have never managed to find out what 'learn' is supposed to have been.
> > No Linux or other *nix-derived system I've ever used has had a command
> > by that name.
> 
> https://www.unix.com/man-page/bsd/1/LEARN/

Wow :-)

Cheers
-- 
t


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Re: The "uniqueness" of UUIDs

2024-11-27 Thread Michael Stone

On Tue, Nov 26, 2024 at 04:35:13PM +0100, Roger Price wrote:
My understanding is that a Linux file system is a hierachical 
structure starting with the root directory (/) which organises the 
directories and files.  The files are stored on various devices which 
have identities such as /dev/sdxn, UUID or LABEL.  These identities 
are for the devices, not parts of the file system.


Your understanding is wrong: the UUIDs you are talking about are a 
feature of the filesystem--that's why they appear in lsblk -f 
(filesystem) output. You can find the same UUID in filesystem-specific 
tools such as dumpe2fs; lsblk has logic to extract a UUID from each 
filesystem that it knows how to parse and which contains a UUID. There 
are other UUIDs associated with some storage devices, partitions, and 
all sorts of other things on a modern system, but they are not the 
filesystem UUID and are not what is displayed in lsblk -f. (lsblk -f 
does include some UUIDs which aren't in filesystems, but which are in 
some other on-disk structure logically similar to a filesystem; an 
example is LVM physical volumes [also visible via pvs -v].) 



Re: help, man, etc. (was Re: Using terminal commands - corner cases)

2024-11-27 Thread tomas
On Wed, Nov 27, 2024 at 10:40:44AM -0500, The Wanderer wrote:
> On 2024-11-27 at 09:28, to...@tuxteam.de wrote:

[...]

> > And yes, it's a pity there is no common frontend for both.
[help and man]

> 
> There's also 'info foo', which for some values of foo will be more
> helpful than either of the above, for others will provide exactly the
> same information through a different interface, and for others will
> provide no information at all.

The nice thing about info is that it /actually/ falls back to the man
page when no info page is available. So it is a common front-end of
sorts for both. OTOH, the venerable groff has gained a hyperlink markup
recently [1] ("recently" in its time scale), thus bridging yet another
gap separating man and info.

[...]

> * has learned that learn doesn't help

[...]

> Does anyone have an idea what this old reference may be talking about?

Although I did some first Unix steps on a "real" AT&T (a port for M68K),
with ksh (and a vi which dumped core on lines >1K!), I have no clue,
sorry.

Cheers
-- 
t


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Re: help, man, etc. (was Re: Using terminal commands - corner cases)

2024-11-27 Thread tomas
On Wed, Nov 27, 2024 at 12:24:25PM -0500, The Wanderer wrote:
> On 2024-11-27 at 11:59, to...@tuxteam.de wrote:
> 
> > On Wed, Nov 27, 2024 at 10:40:44AM -0500, The Wanderer wrote:
> > 
> >> On 2024-11-27 at 09:28, to...@tuxteam.de wrote:
> 
> >>> And yes, it's a pity there is no common frontend for both.
> 
> > [help and man]
> 
> >> There's also 'info foo', which for some values of foo will be more 
> >> helpful than either of the above, for others will provide exactly
> >> the same information through a different interface, and for others
> >> will provide no information at all.
> > 
> > The nice thing about info is that it /actually/ falls back to the
> > man page when no info page is available. So it is a common front-end
> > of sorts for both.
> 
> ...huh. So it does, apparently.
> 
> Even at this point I still live and learn. I always thought it was just
> that a few particular packages had had their man pages blindly converted
> to info format so the packager could ship documentation in both formats.
> 
> To be honest, I think I'd kind of rather that it didn't do that... but
> it's not like it's hard to recognize the converted-from-man-page
> presentation and quit the viewer, when it does happen.

It tells you, though. For example, if I do "info ldd", apart from the
giveaway in the heading, as you observe, the footer page says:

  -Info: (*manpages*)ldd, 65 lines --Top---

So it ain't cheating, honest ;-)

Cheers
-- 
t


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Re: Using terminal commands - corner cases

2024-11-27 Thread Eric S Fraga
And, just for the record, should you want to find out more about
commands on Linux without leaving your system (i.e. without any
interaction with the Internet at all), the man command is available to
present the manual pages (dates back to when there was an actual manual
in early unix days) for individual commands, e.g.

man bash

which will describe in quite some detail how to use the shell and

man -k somekeyword

will allow to search man pages.  

bash itself also has a help system: type "help" :-)

-- 
Eric S Fraga via gnus (Emacs 31.0.50 2024-08-16) on Debian 12.6



Re: Using terminal commands - corner cases

2024-11-27 Thread Greg Wooledge
On Wed, Nov 27, 2024 at 12:55:10 +0100, to...@tuxteam.de wrote:
> First: cd is not a command, it is a shell builtin
> (this is subtle, but important).

It's both.  You can even call it a "builtin command".

> Second: even if cd were a "command", the splitting
> of args at whitespace (among *a lot* of other things)
> is done by the shell before the command has even a
> chance at it.

Yes.  The shell *parses* each command you type, and among the steps
taken by the parser, one of the most basic is tokenizing the input
into words.

Given a command like this:

cd /mnt/c/Program Files

the tokenizer breaks it into words:

[cd] [/mnt/c/Program] [Files]

The first word will be the name of the command to run, and all the
words after that will be arguments passed to the command.

If you want "Program Files" to be treated as a single word, then you
must use quoting.  There are several forms, and they're all acceptable:

cd "/mnt/c/Program Files"
cd '/mnt/c/Program Files'
cd /mnt/c/Program\ Files
cd /mnt/c/"Program Files"

In all four cases, the tokenizer only sees two words:

[cd] [/mnt/c/Program Files]

(A second parsing step is quote removal, which discards the quoting
characters that were used to aid the tokenization.)

Also just for the record, bash's tab completion feature is extremely
helpful.  If you type just "cd /mnt/c/Pro" and then press the Tab key,
it will look at the actual file system and find files or directories
that match the current partial word.  If there's only one match, then
it'll type out the rest of the filename for you.  If there are multiple
matches, the behavior depends on your settings.  You may need to press
Tab a second time to get a list of the matches, so that you can type
more characters to make your partial word have only a single match.

When tab completion auto-types a filename with whitespace in it, it'll
use the backslash quoting form to mark the spaces as literal characters
rather than word separators.



Re: help, man, etc. (was Re: Using terminal commands - corner cases)

2024-11-27 Thread The Wanderer
On 2024-11-27 at 11:59, to...@tuxteam.de wrote:

> On Wed, Nov 27, 2024 at 10:40:44AM -0500, The Wanderer wrote:
> 
>> On 2024-11-27 at 09:28, to...@tuxteam.de wrote:

>>> And yes, it's a pity there is no common frontend for both.

> [help and man]

>> There's also 'info foo', which for some values of foo will be more 
>> helpful than either of the above, for others will provide exactly
>> the same information through a different interface, and for others
>> will provide no information at all.
> 
> The nice thing about info is that it /actually/ falls back to the
> man page when no info page is available. So it is a common front-end
> of sorts for both.

...huh. So it does, apparently.

Even at this point I still live and learn. I always thought it was just
that a few particular packages had had their man pages blindly converted
to info format so the packager could ship documentation in both formats.

To be honest, I think I'd kind of rather that it didn't do that... but
it's not like it's hard to recognize the converted-from-man-page
presentation and quit the viewer, when it does happen.

-- 
   The Wanderer

The reasonable man adapts himself to the world; the unreasonable one
persists in trying to adapt the world to himself. Therefore all
progress depends on the unreasonable man. -- George Bernard Shaw



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Re: Using terminal commands - corner cases

2024-11-27 Thread tomas
On Wed, Nov 27, 2024 at 02:18:02PM +, Eric S Fraga wrote:
> And, just for the record, should you want to find out more about
> commands on Linux without leaving your system (i.e. without any
> interaction with the Internet at all), the man command is available to
> present the manual pages (dates back to when there was an actual manual
> in early unix days) for individual commands, e.g.
> 
> man bash
> 
> which will describe in quite some detail how to use the shell and
> 
> man -k somekeyword
> 
> will allow to search man pages.  
> 
> bash itself also has a help system: type "help" :-)

Good points -- as a tip, turn things around: first try "help foo",
then "man foo" whenever you don't know whether what you have is
a builtin or a command.

And yes, it's a pity there is no common frontend for both.

Cheers
-- 
t


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Re: Using terminal commands - corner cases

2024-11-27 Thread Joe
On Wed, 27 Nov 2024 14:36:44 +0100
 wrote:

> On Wed, Nov 27, 2024 at 07:30:17AM -0600, Richard Owlett wrote:
> 
> [...]
> 
> > Thank you. I've seen his site before. I just created a bookmark
> > folder for "Debian Wikis". The first occupant
> > is https://mywiki.wooledge.org .  
> 
> Greg's wiki is a jewel. I thank *him* for it.
> 
> > I've been a computer *user* for six of my eight decades.
> > My only formal background was a one semester intro to programming
> > course as a freshman E.E. student.  
> 
> [...]
> 
> Now what programming language was this?
> 

I would guess most of us in engineering started with some variant of
Fortran. Mine was on an ICL1907 mainframe, which I never saw. IBM 80
column card punches...

-- 
Joe



Re: Using terminal commands - corner cases

2024-11-27 Thread Richard Owlett

On 11/27/24 7:36 AM, to...@tuxteam.de wrote:

On Wed, Nov 27, 2024 at 07:30:17AM -0600, Richard Owlett wrote:

[...]


Thank you. I've seen his site before. I just created a bookmark folder for
"Debian Wikis". The first occupant is https://mywiki.wooledge.org .


Greg's wiki is a jewel. I thank *him* for it.


I've been a computer *user* for six of my eight decades.
My only formal background was a one semester intro to programming course as
a freshman E.E. student.


[...]

Now what programming language was this?


CORC/CUPL
https://en.wikipedia.org/wiki/Cornell_University_Programming_Language

Dartmouth's BASIC was more popular. But we had better football ;/




Cheers





Re: Using terminal commands - corner cases

2024-11-27 Thread Yassine Chaouche

Le 11/27/24 à 15:18, Eric S Fraga a écrit :

[...] the man command is available to
present the manual pages



There are also the fine info pages for most gnu software,
notably the coreutils,
and the /usr/share/doc directory for most other software.

Best,

--
yassine -- sysadm
+213-779 06 06 23
http://about.me/ychaouche



help, man, etc. (was Re: Using terminal commands - corner cases)

2024-11-27 Thread The Wanderer
On 2024-11-27 at 09:28, to...@tuxteam.de wrote:

> On Wed, Nov 27, 2024 at 02:18:02PM +, Eric S Fraga wrote:
> 
>> And, just for the record, should you want to find out more about
>> commands on Linux without leaving your system (i.e. without any
>> interaction with the Internet at all), the man command is available
>> to present the manual pages (dates back to when there was an actual
>> manual in early unix days) for individual commands, e.g.
>> 
>> man bash
>> 
>> which will describe in quite some detail how to use the shell and
>> 
>> man -k somekeyword
>> 
>> will allow to search man pages.
>> 
>> bash itself also has a help system: type "help" :-)
> 
> Good points -- as a tip, turn things around: first try "help foo", 
> then "man foo" whenever you don't know whether what you have is a
> builtin or a command.
> 
> And yes, it's a pity there is no common frontend for both.

There's also 'info foo', which for some values of foo will be more
helpful than either of the above, for others will provide exactly the
same information through a different interface, and for others will
provide no information at all.


This (multiple commands to find the documentation for a command, with no
unified way to look in all the places at once) reminds me of something
that's been in the back of my mind for a long time, and which I've
occasionally gone looking about, but never managed to find an answer on/for.


There is a document which I apparently don't have locally, and don't
remember where I first found, but which is still hosted (in various
formats, none of which are quite what I remember having seen, though the
contents match) in various locations on the current Web. I remember its
having been called "Draft of the UNIX Hierarchy". One location for it
which I find in searching today is:

https://www.cs.earlham.edu/~skylar/humor/Unix/unix.hierarchy.html

Many of the items it lists are obsolete regarding modern usage of,
knowledge of, and familiarity with Linux, and in terms of the
developments in the culture of the use of UNIX and its derivatives over
the time since the document was written, but many of them are still
sufficiently on point to be understandable as reference points. (As a
side note, I would be interested in seeing - and might be interested in
helping to write - an updated version of such a list.)


When I first read this document, there were many references on it which
I did not understand. (One prominent example: I did not know who Dennis,
Bill, and Ken were.) Since then, I have managed to educate myself
sufficiently to be able to understand nearly all of them - with one
prominent exception.

One of the items on the list, under the characteristics of a
"knowledgeable user", is the entry:

* has learned that learn doesn't help

I have never managed to find out what 'learn' is supposed to have been.
No Linux or other *nix-derived system I've ever used has had a command
by that name. I've never managed to find a document which mentions it in
a way that would give a hint as to in what context the term would have
existed, or what it would have been *supposed to* do (whether or not it
actually did it).

Does anyone have an idea what this old reference may be talking about?

-- 
   The Wanderer

The reasonable man adapts himself to the world; the unreasonable one
persists in trying to adapt the world to himself. Therefore all
progress depends on the unreasonable man. -- George Bernard Shaw



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Email Problem

2024-11-27 Thread Stephen P. Molnar
I think I might have contracted a virus, but I'm not sure. I am running 
Bookworm and have been using the Epyrus email client for some time now 
without any problems.


Suddenly I am getting a popup that is quite insistent.



I have run ClamTk on /home/comp and /opt/epyrus, both are clean. The 
source of the email is my web Page, which I have temporarily removed 
from my Hosting Service, but the popup continues to appear.


Where else might the errant string of DNA or RNA be hiding on my computer?

Guidance would be much appreciated. Thanks in advance.

-- Stephen P. Molnar, Ph.D. https://insilicochemistry.net (614)312-7528 
(c) Skype: smolnar1




Re: Using terminal commands - corner cases

2024-11-27 Thread Chris Green
Eric S Fraga  wrote:
> And, just for the record, should you want to find out more about
> commands on Linux without leaving your system (i.e. without any
> interaction with the Internet at all), the man command is available to
> present the manual pages (dates back to when there was an actual manual
> in early unix days) for individual commands, e.g.
> 
> man bash
> 
> which will describe in quite some detail how to use the shell and
> 
The bash man page is often rather too lengthy to find what one wants
easily.  For bash built-in commands it's often more useful to try
'help ' as you don't then have to wade through the *huge*
bash man page to find what you want.

For example 'help cd' gives a nice man page like summary of how to use
cd.

-- 
Chris Green
·



Re: help, man, etc. (was Re: Using terminal commands - corner cases)

2024-11-27 Thread Greg Wooledge
On Wed, Nov 27, 2024 at 10:40:44 -0500, The Wanderer wrote:
> One of the items on the list, under the characteristics of a
> "knowledgeable user", is the entry:
> 
> * has learned that learn doesn't help
> 
> I have never managed to find out what 'learn' is supposed to have been.
> No Linux or other *nix-derived system I've ever used has had a command
> by that name.

https://www.unix.com/man-page/bsd/1/LEARN/



Re: Email Problem

2024-11-27 Thread Brad Rogers
On Wed, 27 Nov 2024 10:50:33 -0500
"Stephen P. Molnar"  wrote:

Hello Stephen,

>Where else might the errant string of DNA or RNA be hiding on my
>computer?

https://forum.palemoon.org/viewtopic.php?f=73&t=31786

-- 
 Regards  _   "Valid sig separator is {dash}{dash}{space}"
 / )  "The blindingly obvious is never immediately apparent"
/ _)rad   "Is it only me that has a working delete key?"
Black man got a lot of problems, but he don't mind throwing a brick
White Riot - The Clash


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Re: Email Problem

2024-11-27 Thread George at Clug
Stephen,

Can you please provide a bit more detail and your setup.  To me the issue maybe 
DNS record related, but I am not sure. I am guessing mail.stackmail.com 
certificate has expired or is self-signed? But I am not sure how to check this.

Do you use any DNS caching on your computer? Can you try a different computer?
 
Is insilicochemistry.net your web site, and do you also have one or more MX 
records (insilicochemistry.net, and mail.insilicochemistry.net) in your web 
site's DNS that point to mail.stackmail.com ?

Below is some DNS name checking that I did, the results confuse me. 

I am guessing that your web site insilicochemistry.net is hosted on 
scluster24.stablehost.com and your email server is hosted on mail.stackmail.com?

If so, what happens if in your Epyrus email client, you use mail.stackmail.com 
and not mail.insilicochemistry.net ?

Epyrus is not packaged with Debian, hence I expect that you downloaded it and 
installed it?  http://www.epyrus.org/


https://mxtoolbox.com/SuperTool.aspx?action=mx%3ainsilicochemistry.net&run=toolpage
PrefHostnameIP Address  
10  mx.stackmail.com185.151.28.67

$ dig mx mail.insilicochemistry.net +short
mail.stackmail.com.
gkirkham@debkde05:~$ dig mx insilicochemistry.net +short

$ dig -x  213.109.149.117 +short
scluster24.stablehost.com.


$ nslookup insilicochemistry.net
Non-authoritative answer:
Name:   insilicochemistry.net
Address: 213.109.149.117

$ nslookup insilicochemistry.net -type=mx
Non-authoritative answer:
Name:   insilicochemistry.net
Address: 213.109.149.117

$ nslookup 213.109.149.117
117.149.109.213.in-addr.arpaname = scluster24.stablehost.com.

$ nslookup 213.109.149.117 -type=mx
Non-authoritative answer:
117.149.109.213.in-addr.arpaname = scluster24.stablehost.com.

$ nslookup mail.insilicochemistry.net
Non-authoritative answer:
mail.insilicochemistry.net  canonical name = mail.stackmail.com.
Name:   mail.stackmail.com
Address: 185.151.28.68
Name:   mail.stackmail.com
Address: 185.151.28.84
Name:   mail.stackmail.com
Address: 185.151.28.85

$ nslookup mail.insilicochemistry.net -type=mx
Non-authoritative answer:
mail.insilicochemistry.net  canonical name = mail.stackmail.com.
Name:   mail.stackmail.com
Address: 185.151.28.68
Name:   mail.stackmail.com
Address: 185.151.28.84
Name:   mail.stackmail.com
Address: 185.151.28.85

https://www.stablehost.com/about-us.php

$ nslookup scluster24.stablehost.com -type=mx
Non-authoritative answer:
Name:   scluster24.stablehost.com
Address: 213.109.149.116

$ nslookup 213.109.149.116
116.149.109.213.in-addr.arpaname = scluster24.stablehost.com.


$ ping 185.151.28.68
PING 185.151.28.68 (185.151.28.68) 56(84) bytes of data.
64 bytes from 185.151.28.68: icmp_seq=1 ttl=45 time=296 ms
64 bytes from 185.151.28.68: icmp_seq=2 ttl=45 time=296 ms
^C
--- 185.151.28.68 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1001ms
rtt min/avg/max/mdev = 296.197/296.311/296.425/0.114 ms

$ nslookup 185.151.28.68
68.28.151.185.in-addr.arpa  name = smtp.stackmail.com.

$ nslookup 185.151.28.85
85.28.151.185.in-addr.arpa  name = 185-151-28-85.ptr4.stackcp.net.


https://mxtoolbox.com/SuperTool.aspx?action=mx%3amail.insilicochemistry.net&run=toolpage
TypeDomain Name Canonical Name  TTL 
CNAME   mail.insilicochemistry.net  mail.stackmail.com  60 min  
Blacklist Check  SMTP Test
TestResult  
Status Problem  DMARC Record Published  No DMARC Record found   Information 
More Info
Status Warning  DMARC Policy Not EnabledDMARC Quarantine/Reject policy 
not enabled  Information More Info
Status Ok   DNS Record PublishedDNS Record found

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On Thursday, 28-11-2024 at 02:50 Stephen P. Molnar wrote:
> I think I might have contracted a virus, but I'm not sure. I am running 
> Bookworm and have been using the Epyrus email client for some time now 
> without any problems.
> 
> Suddenly I am getting a popup that is quite insistent.
> 
> 
> 
> I have run ClamTk on /home/comp and /opt/epyrus, both are clean. The 
> source of the email is my web Page, which I have temporarily removed 
> from my Hosting Service, but the popup continues to appear.
> 
> Where else might the e

Re: help, man, etc. (was: Re: Using terminal commands - corner cases)

2024-11-27 Thread tomas
On Thu, Nov 28, 2024 at 09:34:24AM +0700, Max Nikulin wrote:
> On 27/11/2024 23:59, to...@tuxteam.de wrote:
> > OTOH, the venerable groff has gained a hyperlink markup
> > recently [1] ("recently" in its time scale), thus bridging yet another
> > gap separating man and info.
> 
> Does it affect "man" when called in a terminal application (so usually
> "less" is used as a pager)?

Not magically, I guess. I think we'll still need the viewers being able
to "use" the new markup and the footwork of updating the docs.

> At least Emacs and Vim use heuristics with
> plenty of shortcomings to recognize cross-references to other man pages
> (https://manpages.debian.org - debiman works better because it has index of
> man pages from all packages). It is even worse with links to other sections
> and to notes in the same document.
> 
> doc-base maintains some document index for yelp/khelpcenter/dhelp/dochelp.

No, I think that new markup is just a way of replacing the heuristic
with knowledge. The knowledge still has to come in :-)

Cheers
-- 
t


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Using terminal commands - corner cases

2024-11-27 Thread Richard Owlett
I've used terminal commands for so many decades I don't know where to 
look up fine details of a specific commands.


I just tried to use the cd command with a target directory having spaces 
in it's name. Of course the system responded

 > bash: cd: too many arguments

DuckDuckGo led to [ 
https://bash.cyberciti.biz/guide/Cd_command#Dealing_with_directories_with_white_space_in_their_names 
].


Problem solved. But is there somewhere to go directly without a web search?

TIA



Re: Using terminal commands - corner cases

2024-11-27 Thread tomas
On Wed, Nov 27, 2024 at 05:38:30AM -0600, Richard Owlett wrote:
> I've used terminal commands for so many decades I don't know where to look
> up fine details of a specific commands.
> 
> I just tried to use the cd command with a target directory having spaces in
> it's name. Of course the system responded
>  > bash: cd: too many arguments
> 
> DuckDuckGo led to [ 
> https://bash.cyberciti.biz/guide/Cd_command#Dealing_with_directories_with_white_space_in_their_names
> ].
> 
> Problem solved. But is there somewhere to go directly without a web search?

First: cd is not a command, it is a shell builtin
(this is subtle, but important).

Second: even if cd were a "command", the splitting
of args at whitespace (among *a lot* of other things)
is done by the shell before the command has even a
chance at it.

So for both reasons, it's not "cd" what you are looking
at, but your shell.

You could do worse than having a look at the Bash Guide,
co-maintained by one of our regulars here. For your case,
the first chapter [1] seems relevant.

Cheers

[1] https://mywiki.wooledge.org/BashGuide/CommandsAndArguments
-- 
t


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Re: Using terminal commands - corner cases

2024-11-27 Thread Richard Owlett

On 11/27/24 5:55 AM, to...@tuxteam.de wrote:

On Wed, Nov 27, 2024 at 05:38:30AM -0600, Richard Owlett wrote:

I've used terminal commands for so many decades I don't know where to look
up fine details of a specific commands.

I just tried to use the cd command with a target directory having spaces in
it's name. Of course the system responded
  > bash: cd: too many arguments

DuckDuckGo led to [ 
https://bash.cyberciti.biz/guide/Cd_command#Dealing_with_directories_with_white_space_in_their_names
].

Problem solved. But is there somewhere to go directly without a web search?


First: cd is not a command, it is a shell builtin
(this is subtle, but important).

Second: even if cd were a "command", the splitting
of args at whitespace (among *a lot* of other things)
is done by the shell before the command has even a
chance at it.

So for both reasons, it's not "cd" what you are looking
at, but your shell.

You could do worse than having a look at the Bash Guide,
co-maintained by one of our regulars here. For your case,
the first chapter [1] seems relevant.

Cheers

[1] https://mywiki.wooledge.org/BashGuide/CommandsAndArguments



Thank you. I've seen his site before. I just created a bookmark folder 
for "Debian Wikis". The first occupant is https://mywiki.wooledge.org .


I've been a computer *user* for six of my eight decades.
My only formal background was a one semester intro to programming course 
as a freshman E.E. student.

Keep running into things I never knew or had long forgotten ;/
[Only been around Linux since Stretch]





Re: Using terminal commands - corner cases

2024-11-27 Thread tomas
On Wed, Nov 27, 2024 at 07:30:17AM -0600, Richard Owlett wrote:

[...]

> Thank you. I've seen his site before. I just created a bookmark folder for
> "Debian Wikis". The first occupant is https://mywiki.wooledge.org .

Greg's wiki is a jewel. I thank *him* for it.

> I've been a computer *user* for six of my eight decades.
> My only formal background was a one semester intro to programming course as
> a freshman E.E. student.

[...]

Now what programming language was this?

Cheers
-- 
t


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