Jun 3, 2015 · In the help for sed you will find that -e flag stands for:-e script, --expression=script add the script to the commands to be executed You are not the first to be confused after …

Its -i works as follows (from info sed):-i[SUFFIX] --in-place[=SUFFIX] This option specifies that files are to be edited in-place. GNU `sed' does this by creating a temporary file and sending …

The shell then runs the above command sed with the next arguments (assuming pattern=bert and file=text.txt): -i s,bert,Say hurrah to &: \0/, text.txt If file.txt contains bert , the output will be:

You need to quote \[.*^$/ in the regular expression part of the s command and \&/ in the replacement part, plus newlines.

With awk:. awk '1;/PATTERN/{ print "add one line"; print "\\and one more"}' infile Keep in mind that some characters can not be included literally so one has to use escape sequences (they begin …

Sed (short for stream editor) is a text-processing utility that has been developed at the time when text was processed one line at a time, but remains one of the most powerful Unix/Linux …

Unless you want to interpolate a shell variable into the sed expression, use single quotes for the whole expression because they cause everything between them to be interpreted as-is, …

Oct 16, 2014 · If sed it not a requirement for some hidden reason, better use the right tool for the job. The command tr has the main use in translating (hence the name "tr") a list of characters …

Nov 3, 2019 · This is cal output piped to GNU sed (called gsed on macOS installed via brew.sh, and simply sed on GNU installations) with extended RegEx (-E) and 6 "scripts" applied (-e) …

In that case, you should know that sed uses \b for both types of word boundaries (beginning and ending). So you can write something like this: sed -i 's/\bPI\b.*\bValue:\b//' your_file For extra …