sed-grep-escape-functions.sh

#!/bin/bash

sed_regex_extended_esc () {
    echo "$1" | sed -e 's/[]\/$*.^|[]/\\&/g'
}
sed_replace_esc () {
    echo "$1" | sed -e 's/\//\\&/g'
}
grep_p_esc () {
  echo "$1" | sed 's/\([()\.="\*<?^]\)/\\\1/g;s/\(\]\|\[\)/[\1]/g'
}