Renaming files in a bash script


 
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# 1  
Old 09-16-2004
Renaming files in a bash script

I'm doing a short batch script to compile po files producing output binary mo files.

The compilation command is:
msgfmt -o file.mo file.po

so in order to compile I am appending .mo to the varible in a loop.

It goes something like this:
for i in `find . -name "*.po"`
do
echo "Compiling $i"
msgfmt -o $i.mo $i
done

The result are file.po and file.po.mo files, but what is requeried is
file.po and file.mo.
SO I tied renaming after the compilation command with:
mv $i `expr $i : '\(.*\).po'` #rename 'file.po.mo' to 'file'
mv $i $.mo

but $i does not equal 'file', so the last line fails. I tried a few things like using awk and assigning another variable to 'file' and renaiming that, but yet to no avail.

Any ideas?
Thanks
# 2  
Old 09-16-2004
Well, seeing as you're using bash, try changing the compilation line to

Code:
msgfmt -o `expr substr $i 1 $(( ${#i} - 3 ))`.mo $i

That should remove the ".po" before you start, so you won't need the "mv" now.

Cheers
ZB
# 3  
Old 09-16-2004
Thanks ZB, works well and is a useful bit of code
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