>> On Wed, 29 Feb 2012 00:19:19 +0800, lina <lina.lastn...@gmail.com> said:
L> How to configure to make each terminal share one "history"? I found
L> each terminal saves its own history and no sharing. Is it possible to
L> let them share?
You can if you don't mind stretching the definition of "share". Have a
look at this page to see how to save your command history to syslog:
http://jablonskis.org/2011/howto-log-bash-history-to-syslog/
Here's an example. I added this to the end of ~/.bashrc to save history
to my own file and the system log:
export PROMPT_COMMAND='history -a >(tee -a ~/.bash_history |
logger -p local2.notice -t "$USER [$$] $SSH_CONNECTION")'
This sends my history to facility "local2" with priority "notice".
I fixed syslog so local[25] messages only show up in one place; I already
use local5 for output from a backup program. Here's the relevant part
of /etc/syslog.conf -- backslashes must be at the end of the lines:
# Log anything (except mail) of level info or higher.
# Don't log private authentication messages!
*.info;kern.none;mail.none;\
authpriv.none;auth.none;local2.none;\
local5.none;cron.none /var/log/messages
# Auth logfiles are restricted.
authpriv.* /var/log/secure
auth.* /var/log/authlog
# Local logs.
local0.* /var/log/local0log
local1.* /var/log/local1log
local2.* /var/log/local2log
local3.* /var/log/local3log
local4.* /var/log/local4log
local5.* /var/log/local5log
local6.* /var/log/local6log
# Cron stuff
cron.* /var/log/cron
Here's what my history looks like:
me% tail -3 /var/log/local2log
Mar 7 22:09:22 svr1 vogelke [149] 1.2.3.4 46555 5.6.7.8 22: which logger
Mar 7 22:09:31 svr1 vogelke [149] 1.2.3.4 46555 5.6.7.8 22: echo $PATH
Mar 7 22:09:44 svr1 vogelke [149] 1.2.3.4 46555 5.6.7.8 22: dir
/var/log/local*
me% tail -3 $HOME/.bash_history
which logger
echo $PATH
dir /var/log/local*
"1.2.3.4" is where I'm connecting from, "5.6.7.8" (aka "svr1") is the
host I'm connecting to via SSH. If you use the Z-shell instead of bash,
the method is pretty similar -- add this function to the bottom of your
~/.zshrc file:
# Log commands, return codes and the current working directory.
# Based on:
#
# http://blogs.sun.com/chrisg/entry/logging_commands_in_korn_shell
# Logging commands in korn shell
# Chris Gerhard
# Thu, 2 Mar 2006 09:47:29 -0500
#
# Don't try to put local on the x= line. If you do,
# any command arguments (i.e., "ls -la") will throw an error:
# precmd:local:2: not an identifier: -la
precmd () {
typeset -i stat=$?
local x
x=$(fc -ln -1)
local d="$(/bin/pwd)"
logger -p local2.notice -t "$LOGNAME $$" $stat: $d: \($x\)
}
In order to really share this, you'd probably have to write something to
grub around in the syslog file.
--
Karl Vogel I don't speak for the USAF or my company
She acts like she's on the phone to avoid certain customers. One time it rang.
--Jimmy Fallon, #mycoworkeriscrazy tweets, 2 Mar 2012
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