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simple for loop/cat issue


 
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# 1  
Old 09-30-2009
simple for loop/cat issue

ok..
so problem is:

I have a file that reads:
cat 123
Code:
1 and 2
3 and 4
5 and 6

I was using for loops to run through this information.

Code:

Code:
for i in `cat 123`
do
echo $i
done

shouldn't the output come as
Code:
1 and 2
3 and 4
5 and 6 ...(1)

rather, its coming as :
Code:
1
and
2
3
and
4

..... something like this...using ksh here...

lemme know what the issue is..I want to display output as (1)...no code alternatives pls..just was wondering what was wrong in this code..

thanks..!

Last edited by vgersh99; 09-30-2009 at 08:08 PM.. Reason: code tags, PLEASE!
# 2  
Old 09-30-2009
Code:
#!/bin/ksh

while read i
do
   echo "${i}"
done < 123



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# 3  
Old 09-30-2009
Quote:
Originally Posted by foal_11
shouldn't the output come as
Code:
1 and 2
3 and 4
5 and 6 ...(1)

rather, its coming as :
Code:
1
and
2
3
and
4

no. this is because its using the default characters for $IFS(internal field separator) which is white space. set IFS='\n' prior to your loop and you should get what you expect. I would wrap your variable in double quotes though.
# 4  
Old 09-30-2009
works..!

thanks frank...worked just fine..!

vgersh99 --- will remember the tags next time..

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