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Old 05-09-2006, 11:06 AM   #1
Kleedrac
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Registered: Apr 2004
Location: Saskatoon SK. CA
Distribution: Ubuntu Dapper
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Unhappy Need help with bash scripting


Hey all,

I'm essentially looking for a quick-n-dirty scripting intro and then I should be good, I have coded in java, perl, c, and others but it's been a while and I've never really got into shell scripting. Essentially I'm trying to write a script to execute one command on each file in a directory. Basic file conversion at its finest, I'm just hoping I can write this script quickly before it becomes necessary to convert each file manually Come to think of it all I really need is to tell the script to find all files of a given type in the current directory and construct a loop to go through them Thanks for your time

Kleedrac
 
Old 05-09-2006, 11:47 AM   #2
raskin
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man bash
for i in *.sh; do
cat $i;
done

Is idea clear?
 
Old 05-09-2006, 11:48 AM   #3
rickh
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Registered: May 2004
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I've been working on something similar.

Here's a thread with me getting help.

And a couple internet links that I found helpful,
http://6v8.gamboni.org/Mass-renaming...nux-shell.html

http://www.arachnoid.com/linux/shell_programming.html

The second internet link there is kind of a 'jump in the deep water' quickly intro to bash scripting. I got a lot of usful things there.
 
Old 05-09-2006, 11:53 AM   #4
Kleedrac
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Woah ... all right ... thanks guys.
Raskin: So if I understand right if I just wanted to duplicate every file of type .sh in a directory;

for i in *.sh; do
cp $i $i.nosh
done

Is that basically it?! Man ... thanks a lot you guys ... I'll try this out when I'm done work today
 
Old 05-09-2006, 11:54 AM   #5
David the H.
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I found this "quick & dirty' intro to be very useful. If you've done programming before, it should be a snap for you.LinuxCommand.org

For more in-depth study, try here:

Advanced Bash Scripting Guide
 
Old 05-09-2006, 11:57 AM   #6
raskin
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Yes, if you haven't .sh.nosh files it will work fine. Else it'll work fine, but destroy information. Also, if you add suffix ${i}.nosh is more predictable if some day you suffix will try to merge with variable name - that way it is delimited.
 
Old 05-09-2006, 02:55 PM   #7
pixellany
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Bash guide for Beginners--by Machtelt Garrels (on tldp.org)

Classic shell scripting--O'Reilly Most any big bookstore or Amazon
 
  


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