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shell / awk doubt

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# 1  
Old 01-10-2002
shell / awk doubt
Hi all,

I have a ascii text file like this :

$cat a.txt

abc |12343 |xyakdfj |
x |323 ||
kr1 |13434343|234343 |

Is it possible to to get the file eleminating blank spaces?

output file :

abc|12343|xyakdfj|
x|323||
kr1|13434343|234343|

using korn shell or awk


thanks in advance

Krishna
# 2  
Old 01-10-2002
Code:

cat a.txt | sed -e "s/ //g"
cat a.txt | awk 'gsub(" ", "")'

Last edited by shaik786; 01-10-2002 at 07:37 AM..
shaik786
# 3  
Old 01-17-2002
Quote:
cat a.txt | awk 'gsub(" ", "")'
That awk solution, with gsub as a pattern match, will print only lines where gsub changes the line, so you can lose lines.

To retain all your lines:
Code:
awk '{gsub(" ","");print}' a.txt

Jimbo
# 4  
Old 01-18-2002
I'm not trying to be a jerk here, but there is not reason to be using "cat" in any of the above example.

Instead of
cat a.txt | sed -e "s/ //g"
you can do:
sed 's/ //g' a.txt
and for this one:
cat a.txt | awk 'gsub(" ", "")'
you can do:
awk 'gsub(" ","")' a.txt

You can always pipe to those commands, but there's no need to use cat to dump a file.
# 5  
Old 01-18-2002
Yep, agree with that (and notice that my suggested correction dropped the cat).
Jimbo
# 6  
Old 01-18-2002
Sure did... Smilie

I can't remember the URL to a page that has various awards for using cat too much... If I find it, I'll post back.
# 7  
Old 01-23-2002
Alternative way
Try this if you don't want to use awk

cat <filename> | tr -d '" "'
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