Hi Alejandro,
! groff -Tutf8 -man -ww longline.man |
expand |
grep '^.\{80\}.'
Ahh, I forgot about \{N\}, since I never use it.
Still, the Makefile uses pipefail, so I'm not sure how to make grep(1)
work for this. If it works, it would be nice.
Move the inversion along the pipeline with a subshell.
$ awk '{print FILENAME, length}' *
79 79
80 80
81 81
$
$ set -o pipefail
$ false | (! grep '^.\{80\}.' 79); echo $?
1
$ false | (! grep '^.\{80\}.' 80); echo $?
1
$ false | (! grep '^.\{80\}.' 81); echo $?
.................................................................................
1
$
$ true | (! grep '^.\{80\}.' 79); echo $?
0
$ true | (! grep '^.\{80\}.' 80); echo $?
0
$ true | (! grep '^.\{80\}.' 81); echo $?
.................................................................................
1
$