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Remove last occurrence of character (_) and rest of the string in UNIX (sed)

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# 1  
Old 05-27-2013
Remove last occurrence of character (_) and rest of the string in UNIX (sed)
Hi

I need help on this ..!!

Input :
Code:
xx_abc_regA
xx_def_regB
xx_qwe_regC

Now i required the output as the below
Code:
abc
def
qwe

Need to remove last occurrence of character (_) and rest of the string in Unix (sed).

Thanks in Advance ..!!!

-Nallachand
Last edited by Franklin52; 05-27-2013 at 07:35 AM.. Reason: Please use code tags
# 2  
Old 05-27-2013
Quote:
Originally Posted by Nallachand
Need to remove last occurrence of character (_) and rest of the string in Unix (sed).
This is a pretty common problem, I'm sure. You could search the forums before asking such a question. Anyway, here's an example:
Code:
sed 's/\(.*\)_.*/\1/' file

# 3  
Old 05-28-2013
balajesuri Thanks..!!
# 4  
Old 05-28-2013
Code:
$ sed "s/_[^_]*$//" file
xx_abc
xx_def
xx_qwe

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