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Full Discussion: False positive grep?
Top Forums Shell Programming and Scripting False positive grep? Post 303045950 by sea on Sunday 19th of April 2020 06:22:36 AM
Old 04-19-2020
Thank you, I'll try to keep that present (2 & null) after reviewing current code.
What is this RHS you are refering to please?

Uhm, not really on the possible error topic - as I experienced it differently.
....
Phew... i still had that in the terminal so I could scroll to it...

Code:
# | 45) swarm.util.mkdir                                                                     46) swarm.util.which | #
# | > ^[[A/home/sea/prjs/SWARM/data/libs/util.enduser: Zeile 538: [[: [: Syntax Fehler: Operator erwartet. (Fehlerverursachendes Zeichen ist \"[\").
/home/sea/prjs/SWARM/data/libs/util.enduser: Zeile 561: [: [: Ganzzahliger Ausdruck erwartet.
/home/sea/prjs/SWARM/data/libs/util.enduser: Zeile 568: [: Syntax Fehler: Operator erwartet. (Fehlerverursachendes Zeichen ist \"[\").
/home/sea/prjs/SWARM/data/libs/util.enduser: Zeile 536: [[: [: Syntax Fehler: Operator erwartet. (Fehlerverursachendes Zeichen ist \"[\").

False positive grep?-swarm20-falsegrepjpg

This is with code of the 'initial' post/s ; where the 'catch' was different from the code we're talking about now (recent post with code).
This 'symbol' cannot be compared to a number, thus creating an 'expected' error message, which I wanted to get rid of -> as it breaks the visual experience.

Could you advice a better handling for this situation?
-> Catching arrow keys without showing the enduser an error message? <-
 

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DGREP(1)						   Debian-goodies documentation 						  DGREP(1)

NAME
dgrep, degrep, dfgrep, dzgrep -- grep through files belonging to an installed Debian package SYNOPSIS
dgrep [most grep options] pattern package... dgrep --help DESCRIPTION
dgrep invokes grep(1) on each file in one or more installed Debian packages. It passes the package argument(s) to dglob(1) to retrieve a list of files in those packages. You can use POSIX regular expressions for the package names. If dgrep is invoked as degrep, dfgrep or dzgrep then egrep(1), fgrep(1) or zgrep(1) is used instead of grep. OPTIONS
dgrep supports most of grep(1)'s options. Please refer to your grep documentation (i.e. the manpage or the texinfo manual) for a complete listing. Only a few options are excluded because they do not conform with the intended behaviour, see the list below. Options of grep that are not supported by dgrep -r, --recursive, -d recurse, --directories=recurse -d read, --directories=read dgrep searches only in the "normal" files of a package. It skips all directories and symlinks. Therefor the options of grep that are specific to directories are not supported. AUTHOR
Matt Zimmerman <mdz@debian.org> This manpage was written by Frank Lichtenheld <frank@lichtenheld.de>. COPYRIGHT AND LICENCE
Copyright (C) 2001 Matt Zimmerman <mdz@debian.org>. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. On Debian systems, a copy of the GNU General Public License may be found in /usr/share/common-licenses/GPL. SEE ALSO
grep(1), egrep(1), fgrep(1), zgrep(1), dglob(1), regex(7), dpkg(8) perl v5.14.2 2012-03-21 DGREP(1)
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