Test regular or rational expression, or regex, regexp.
Tester une expression régulière ou rationnelle
$ echo "text" | egrep --color "regex"
If it appears that you don’t have
egrep available, try with
You can also use
rg from the Debian package
ripgrep as presented here:
$ echo "text" | rg "regex" (1)
|1||to actually get line numbers at the begining of each result line add the