Syntax
regexp(regexp, file)
Description
The regexp() function returns an array of lines from the file that match the regular expression regexp.
Example
println(regexp("^foobar", "/etc/passwd"))
[foobar:x:1000:100:Foo Bar,,,:/home/foo:/bin/bash, foobar1:x:1001:100:Foo Bart:/home/foobar1:/bin/sh]