Question

suppose to have the following string:

commandone{alpha} commandtwo{beta} {gamma}commandthree commandtwo{delta}

and I want to abtain:

commandone{alpha} beta {gamma}commandthree delta

well I’m triying with regex and sed, I can easily find if is it present the pattern I look for
/commandtwo{.*}/ but not erasing commandtwo and the following two brakets. A way would be to work only the substrings “commandtwo{beta}” and “commandtwo{delta}” but I don’t know even if is it possible or noto using sed.

I’m looking for a regex to perform the action I’ve described.
thank in advance

Answer 1

This seems to work:

sed 's/commandtwo{\([^}]*\)}/\1/g' inputfile

Example:

$ echo 'commandone{alpha} commandtwo{beta} {gamma}commandthree commandtwo{delta}'|sed 's/commandtwo{\([^}]*\)}/\1/g'
commandone{alpha} beta {gamma}commandthree delta