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.
when i am trying to remove consecutive duplicate lines with
awk "!x[$0]++" file
its reporting x[: Event not found.
even the same case with
sed -i -e "$!N; /^\(.*\)\n\1$/!P;D" file as well reporting
N: Event not found.
i tried with single quotes too, it didn’t help
Any idea to fix those
You’re invoking the shell’s history substitution. Surround the exclamation point with single quotes.