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How to delete expression in the brackets?

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# 1  
Old 03-28-2011
How to delete expression in the brackets?
how to delete second part in the expression sshd[19557] using gsub function so that output look likes sshd.

Thanks.
# 2  
Old 03-28-2011
Quote:
Originally Posted by tkmmelvin
how to delete second part in the expression sshd[19557] using gsub function so that output look likes sshd.

Thanks.

Hi tkmmelvin,

Try with:

 gsub(/\[.*\]/,"")

So similar what is in:

156815-cut-column-edit-data.html

Regards
# 3  
Old 03-28-2011
Code:
$ echo "sshd[19557]" | ruby -e 'puts gets.split("[",2)[0]'
sshd

# 4  
Old 03-28-2011
That's not using the gsub function!
# 5  
Old 03-28-2011
Code:
echo "sshd[19557]" | awk -F"[" '{print $1}'
sshd

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