| 91,10 → 91,13 |
|---|
| # * Portability notes |
| # - 'sed -r' is not portable, works in GNU, XXX FreeBSD equivalent -E? |
| # - 'grep -o' is not portable, works in GNU and FreeBSD |
| # Alternative: |
| # sed -n -e 's/\(SEARCH\)/\1\\ |
| # /gp' | sed -e '/^[[:space:]]*$/d' -e 's/.*\(SEARCH\).*/\1/' |
| # possibly + -e '/^$/d' and -e '/SEARCH/!d' |
| # Alternatives: |
| # > One match per line: |
| # $ sed -n -e 's/.*\(SEARCH\).*/\1/gp |
| # > Multiple matches per line: (like grep -o) |
| # $ sed -n -e 's/\(SEARCH\)/\1\ |
| # /gp' | sed -e 's/.*\(SEARCH\).*/\1/' -e '/SEARCH/!d' |
| # The p flag ONLY prints IF a substition succeeded |
| # - 'expr' is not a builtin, 'expr match' is not understood in, at least, FreeBSD |
| # - 'egrep' is deprecated in SUS v2, 'grep -E' replaces it [[x2]] |
| # * UNIX filter equivalencies |