Remove the comment symbol ' from a file.

joyan321 · #1 (**permalink**) 06-23-2009

I want to remove the commented lines in a file identified by ' symbol at the start of each ine. A sample example will be like:

Input
-----
'IFerr_flag=0THEN
iferr_flag=0then
iferr_flag=0then
iferr_flag=0then
iferr_flag=0then
iferr_flag=0then
iferr_flag=0then

Output
-------
iferr_flag=0then
iferr_flag=0then
iferr_flag=0then
iferr_flag=0then
iferr_flag=0then
iferr_flag=0then

durden_tyler · #2 (**permalink**) 06-23-2009

Quote:

Originally Posted by joyan321

I want to remove the commented lines in a file identified by ' symbol at the start of each ine. ...

Code:

sed "/^ *'/d" filename >tmp ; mv tmp filename

joyan321 · #3 (**permalink**) 06-23-2009

Quote:

Originally Posted by durden_tyler

Code:

sed "/^ *'/d" filename >tmp ; mv tmp filename

tyler_durden

Thanks so much ....

pludi · #4 (**permalink**) 06-23-2009

Code:

grep -v "^'" filename

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