console command help - remove line of text from file

[supradrvr]

I am needing to know what command will remove a line of text from a file. I know the command ls line of text >> filename.txt will add to the file but what command will remove the line?

[yabbadabbadont]

It will probably take a combination of using 'cat' and 'sed' to do what you want. You will need to study the sed man page in particular.
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[supradrvr]

thanks for the reply. I will look into it and post my findings.