How to remove line of text from file

netkepala · 05-23-2003, 06:26 AM

Hi All,

I wonder if there's a linux command which will be able to remove
a whole line of text from a file given a certain phrase

I know I can do a

cat filename|grep phrase

but that will only display the whole line of text.

How do I erase that whole line of text and save the changes
back to that file ?

Thank you

jharris · 05-23-2003, 06:36 AM

You could use

Code:

grep -v phrase inputFile > outputFile

which would create a new file called outputFile that contains all lines that don't contrin "phrase". You might want to consider looking into sed and awk though for a more elegant solution.

cheers

Jamie...

netkepala · 05-23-2003, 11:49 AM

thanks, i will try it out