To remove the line and print the output to standard out: To directly modify the file – does not work with BSD sed: Same, but for BSD sed (Mac OS X and FreeBSD) – does not work with GNU sed: To directly modify the file (and create a backup) – works with BSD and GNU … Read more
You can use the -i flag which makes your pattern case insensitive: Also, there is no need for cat. grep takes a file with the syntax grep <pattern> <file>. I also used the -F flag to search for a fixed string to avoid escaping the ellipsis.
From the sed man page: Normally, sed cyclically copies a line of input, not including its terminating newline character, into a pattern space, (unless there is something left after a “D” function), applies all of the commands with addresses that select that pattern space, copies the pattern space to the standard output, appending a newline, and deletes … Read more