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Old 11-08-2004, 04:08 AM   #1
shy
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Registered: Dec 2002
Location: Russia
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bash, loops and spaces in filenames


Hi.

I'm frequently using bash scripts like this:
Code:
for i in `ls *`; do
   #do something with $i
done
but I face some problems when files in current directory contain spaces in their names, because $i goes through words separated by spaces. For example,
Code:
$ touch "a b"; touch "c d";
$ for i in `ls *`; do echo $i; done        
a
b
c
d
What should I do to force the output be like this:
Code:
a b
c d
?
 
Old 11-08-2004, 05:09 AM   #2
theYinYeti
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Registered: Jul 2004
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I hope this helps:
Code:
#!/bin/bash

OLDIFS="$IFS"
IFS='
'
for fic in $(ls); do
        echo $fic
done
IFS="$OLDIFS"
Yves.
 
Old 11-08-2004, 05:15 AM   #3
jschiwal
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Location: Fargo, ND
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Use double quotes around the variable.

example:
for song in *.mp3; do mv " ${song}" "${song// /_}"; done
will replace spaces in the filenames with the underscore.

You will need to place the variable in double quotes anyway in
case the filename might contain characters like '()*!' which are
not whitespace but have a special meaning to the shell.
 
Old 11-08-2004, 05:28 AM   #4
shy
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Location: Russia
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Quote:
Originally posted by theYinYeti
I hope this helps:
Thanks, this helped

Quote:
Originally posted by jschiwal
for song in *.mp3; do mv " ${song}" "${song// /_}"; done
Well, quotes wasn't the case, you just don't use the output of ls, but use "*" directly. This is a bit simplier, thanks too.
But I'm wondering where can I learn more about renaming in the style of ${song// /_}?
 
Old 11-08-2004, 07:18 AM   #5
theYinYeti
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`man bash` is a great source of information. Tip, after typing man bash[enter], type this: "/\#\#" and [enter] and you'll be right at the interesting location.

Yves.
 
Old 11-08-2004, 07:43 AM   #6
shy
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Registered: Dec 2002
Location: Russia
Distribution: ASP linux
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Quote:
Originally posted by theYinYeti
`man bash` is a great source of information.
Thanks again, I was always to lazy to read `man bash` from start to end
 
  


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