[SOLVED] To substitute a string with sed command

Issue

I am trying to substitute below string with a space and save it to a file.

*wrap*_trig[0]

I tried below sed cmd but it not working. What is going wrong over here.

sed -i 's/*wrap\*_trig[0\]/ /g' file.txt

Solution

This might work for you (GNU sed):

sed 's/\*wrap\*_trig\[0\]/X/g' file

Remember * and [...] are metacharacters on the LHS of a substitution command and if literal must be escaped/quoted either by a prefixing a \ or by surrounding the character by [ and ]. An * and ] need not be quoted when there is no character preceding the first or no opening [ with the second.

Here are some more solutions:

sed 's/[*]wrap[*]_trig[[]0[]]/ /g' file

or

sed 's/*wrap\*_trig\[0]/ /g' file

Answered By - potong

Answer Checked By - Robin (WPSolving Admin)