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how can i read a line using the 'for'


 
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# 1  
Old 03-02-2008
Question how can i read a line using the 'for'

im trying to read from a file line by line using a 'for' loop is it possible in bash?
# 2  
Old 03-02-2008
yes it is!
# 3  
Old 03-02-2008
Quote:
Originally Posted by DukeNuke2
yes it is!
how do i do it?
can you help me

i have tried
for i in $(cat $file)
do
echo $i
done

its output is word by word by wanted to read the whole line
# 4  
Old 03-02-2008
something like:

Code:
for i in `cat /path/to/file`
do
your code here
done

# 5  
Old 03-02-2008
Try seeting IFS to some character which is not in the file you which to read i.e.

Code:
IFS=:
for i in $(cat $tmp)
do
   echo $i
done

# 6  
Old 03-02-2008
It is an IFS issue, which default can vary from shell to shell (sh, bash, ksh ...) if I remember correctly.
Actually, DukeNuke2's code is the same as the original one. Try this:

Code:
IFS=$'\n'
for i in $(cat $file)
do
   echo "$i"
done

# 7  
Old 03-02-2008
Quote:
Originally Posted by vadharah
im trying to read from a file line by line using a 'for' loop is it possible in bash?
Why don't you use a while loop?

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