Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
The following sed command replaces the OLD string with the NEW string.
My target is to replace the OLD to NEW only if COMMAND word appears as the first word in the line.
How to fix my sed syntax in order to replace OLD with NEW only if COMMAND is the first word in line?
(Note: COMMAND word location could be after some spaces from the line beginning.)
lidia
sed "/^ *#/b; /COMMAND/ s/OLD/NEW/g" file
COMMAND OLD
OLD COMMAND
after sed exe:
COMMAND NEW
NEW COMMAND
You must login to add an answer.
1 Answer