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# 8  
Old 07-29-2009
Quote:
Originally Posted by wakatana
Thanks for reply i am trying to do for loop in bash script throught *.mp3 files. Problem is that the mp3 files contains white spaces so i found this advice
HTML Code:
https://www.unix.com/shell-programming-scripting/42839-preventing-whitespace-delimiter-loop-bash-sh.html
in short: back up IFS then set IFS to IFS=$'\n', but how can i print current value of IFS ? echo $IFS gives me nothing. Thanks
You dont have to set IFS for that I think.
All that you need is to quote the variable.
It will be easier if you post the code here.
Dont echo $IFS
Just give the command as mentioned below to list it out.
Code:
 set | grep "^IFS"

# 9  
Old 07-30-2009
OK i put code here, just simple for loop and print line containing white spaces

Code:
#!/bin/bash
for i in $(ls | awk '{print "\""$0"\""}'); do
    echo -ne "file {$i}\n"
done

names with white spaces are printed like:
Code:
file{"one}
file{long}
file{name"}

i want:
Code:
file {"one long name"}

also tried to quote
Code:
ls | awk '{print "\""$0"\""}'

inf for loop but did not work according expectations. Also awk i tried i thought it may help with quotes but did not.
# 10  
Old 07-30-2009
Code:
 
ls -1 s* | sed 's/.*/file \{"&"\}/'

# 11  
Old 07-31-2009
yes i can do that this way but if i want to use mv or cp in my script how do this. Thes works because of sed's & which is actual line. But i am interesting how to force bash for loop just skipping to new value just after recieving new line not any whitespace
# 12  
Old 07-31-2009
Always double check before you click on "Submit Reply".
Check if there are mistakes.
Make sure others can understand what you are trying to say.
Write shorter sentences.
If possible, post the input and the expected output.
If your requirements have changed, mention that.

Can you please clearly state what you want?
I am not sure if this is what you are looking for:
Code:
ls -1 s* | sed 's/.*/cp "&" "&.cpy"/' | ksh

All files starting with a "s" will be copied with extension ".cpy"
I am not sure why you need a loop.
# 13  
Old 08-01-2009
I am sorry if i typed something which is un clearly. I have followings files in directory

Code:
-rw-r--r-- 1 marek marek 0 2009-07-31 20:37 01 - album - track001.mp3
-rw-r--r-- 1 marek marek 0 2009-07-31 20:37 02 - album - track002.mp3
-rw-r--r-- 1 marek marek 0 2009-07-31 20:37 03 - album - track003.mp3
-rw-r--r-- 1 marek marek 0 2009-07-31 20:37 04 - album - track004.mp3
-rw-r--r-- 1 marek marek 0 2009-07-31 20:37 05 - album - track005.mp3
-rw-r--r-- 1 marek marek 0 2009-07-31 20:37 06 - album - track006.mp3
-rw-r--r-- 1 marek marek 0 2009-07-31 20:37 07 - album - track007.mp3
-rw-r--r-- 1 marek marek 0 2009-07-31 20:37 08 - album - track008.mp3
-rw-r--r-- 1 marek marek 0 2009-07-31 20:37 09 - album - track009.mp3

what i am trying to do is rename to trackXXX.mp3

I found that can be done with

Code:
for jmeno in *.mp3
do
  cp $jmeno /tmp/`echo $i | sed "s/\([0-9]\{2\}\).*/track0\1.mp3/"`
done

but did not work for me. Also i searched and found that i have to change IFS variable.
Can you please advise me if this task can be done using using bash and for loop (not ksh), i am traying to learn something about bash scripting. Thanks
# 14  
Old 08-01-2009
Quote:
Originally Posted by wakatana
I am sorry if i typed something which is un clearly. I have followings files in directory

Code:
-rw-r--r-- 1 marek marek 0 2009-07-31 20:37 01 - album - track001.mp3
-rw-r--r-- 1 marek marek 0 2009-07-31 20:37 02 - album - track002.mp3
-rw-r--r-- 1 marek marek 0 2009-07-31 20:37 03 - album - track003.mp3
-rw-r--r-- 1 marek marek 0 2009-07-31 20:37 04 - album - track004.mp3
-rw-r--r-- 1 marek marek 0 2009-07-31 20:37 05 - album - track005.mp3
-rw-r--r-- 1 marek marek 0 2009-07-31 20:37 06 - album - track006.mp3
-rw-r--r-- 1 marek marek 0 2009-07-31 20:37 07 - album - track007.mp3
-rw-r--r-- 1 marek marek 0 2009-07-31 20:37 08 - album - track008.mp3
-rw-r--r-- 1 marek marek 0 2009-07-31 20:37 09 - album - track009.mp3

what i am trying to do is rename to trackXXX.mp3

I found that can be done with

Code:
for jmeno in *.mp3
do
  cp $jmeno /tmp/`echo $i | sed "s/\([0-9]\{2\}\).*/track0\1.mp3/"`
done

but did not work for me. Also i searched and found that i have to change IFS variable.
Can you please advise me if this task can be done using using bash and for loop (not ksh), i am traying to learn something about bash scripting. Thanks
Something like this?

Code:
ls *.mp3 | awk '{system("cp " $0 " " $NF)}'

I've used the cp command but you can replace it with the mv command.

Regards
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