At 22:45 11.02.2006, Parv wrote:
in message <[EMAIL PROTECTED]>,
wrote Kristian Vaaf thusly...
>
>
> Among other things, this script is suppose to add an empty line at
> the bottom of a file.
>
> But somehow it always removes the first line in a text file,
> how do I stop this?
Can you provide a small sample file complete w/ things that you
want to remove?
> #!/usr/local/bin/bash
> #
> # Remove CRLF, trailing whitespace and double lines.
What are "double lines"?
> # $ARBA: clean.sh,v 1.0 2007/11/11 15:09:05 vaaf Exp $
> #
> for file in `find -s . -type f -not -name ".*"`; do
> if file -b "$file" | grep -q 'text'; then
> echo >> "$file"
> perl -i -pe 's/\015$//' "$file"
> perl -i -pe 's/[^\S\n]+$//g' "$file"
Why do you have two perl runs? More importantly, you will remove
anything which is not whitespace or not newline. That means, in the
end, you should have a file filled w/ whitespace only.
>
> perl -pi -00 -e 1 "$file"
> echo "$file: Done"
> fi
> done
To remove CRLF, trailing whitespace, and 2 consecutive blank lines
...
{
tr -d '\r' < "$file" \
| sed -E -e 's/[[:space:]]+$//' \
| cat -s - > "${file}.tmp"
} && mv -f "${file}.tmp" "$file"
- Parv
--
Hello Parv!
Yes I meant blank lines :)
I've used the script for a long time now.
The only error is that it removes the top blank space, if any.
Which is a bit annoying. It's fine for scripts with shebangs but not
for custom laid out documents etc.
I just wanted to know where that error was.
I use the Perl runs because those were the only runs people gave me.
You know how it is, you enter a FreeBSD help channel and ask how you
do this or that, and the upper gentlemen always reply "Learn Perl," and
then they go on giving you Perl runs :)
Your suggestion looks very very good.
So is this alright?
#!/usr/local/bin/bash
#
# Remove CRLF, trailing whitespace and blank lines.
# $ARBA: clean.sh,v 1.0 2007/11/11 15:09:05 vaaf Exp $
#
for file in `find -s . -type f -not -name ".*"`; do
if file -b "$file" | grep -q 'text'; then
echo >> "$file"
tr -d '\r' < "$file"
sed -E -e 's/[[:space:]]+$//'
cat -s - > "${file}.tmp" && mv -f "${file}.tmp" "$file"
echo "$file: Done"
fi
done
All the best man,
Vaaf
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