For cycle - Shell Programming and Scripting

nagomes · #1 (**permalink**) 06-08-2007

Hello,

I have files in a dir.

I what to create a FOR cycle that will do this

FOR <condition> do
file=`ls <directory> | tail -1`
echo $file
mv -f $file <another dir>
done

What I want to now is what should I put in the <condition>. The condition I want is that the FOR will execute until there is no more files in the directory

Thanks

anbu23 · #2 (**permalink**) 06-08-2007

Quote:

Originally Posted by nagomes

Hello,

I have files in a dir.

I what to create a FOR cycle that will do this

FOR <condition> do
file=`ls <directory> | tail -1`
echo $file
mv -f $file <another dir>
done

What I want to now is what should I put in the <condition>. The condition I want is that the FOR will execute until there is no more files in the directory

Thanks

If you want to move all files from one directory to another

Code:

mv -f /dir1/* /dir2

porter · #3 (**permalink**) 06-08-2007

1. Why are you asking almost exactly the same thing again?

2. You would need a 'while' not a 'for'

aigles · #4 (**permalink**) 06-08-2007

Code:

for file in <directory>/*
do
   echo $file
   mv -f $file <another dir>
done

The is a problem with this for loop : if the directory is empty body of the loop is executed nevertheless with the variable file set to '<directory>/*'

Another solution with the for loop :

Code:

for file in `ls -1 <directory>/* 2>/dev/null'
do
   echo $file
   mv -f $file <another dir>
done

You can also use a while loop :

Code:

ls -1 <directory>/* 2>/dev/null | \
while read file
   echo $file
   mv -f $file <another dir>
done

Jean-Pierre.

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