Question

The following line removes the leading text before the variable $PRECEDING

temp2=${content#$PRECEDING}

But now i want the $PRECEDING to be case-insensitive. This works with sed‘s I flag. But i can’t figure out the whole cmd.

Answer 1

Here’s a way to do it with sed:

temp2=$(sed -e "s/^.*$PRECEDING//I" <<< "$content")

Explanation:

• ^.*$PRECEDING: ^ means start of string, . means any character, .* means any character zero or more times. So together this means “match any pattern from start of string that is followed by (and including) string stored in $PRECEDING.
• The I part means case-insensitive, the g part (if you use it) means “match all occurrences” instead of just the 1st.
• The <<< notation is for herestrings, so you save an echo.