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Full Discussion: Help with grep to show date/time of file
Top Forums UNIX for Beginners Questions & Answers Help with grep to show date/time of file Post 303045375 by RudiC on Wednesday 18th of March 2020 05:19:57 PM
Old 03-18-2020
No surprise. If the grep "command substitution" delivers the "empty" value, ls-l uses the default: . . man ls:
Quote:
DESCRIPTION
List information about the FILEs (the current directory by default).
Add a certainly non-existent file name (difficult to find, as there are almost no restrictions on file names), and suppress stderr output:

Code:
ls -l $(grep -il "corrupt" *) FALSE 2>/dev/null


EDIT: or, check the grep result upfront, and just don't call ls if empty...
Last edited by RudiC; 03-18-2020 at 06:33 PM..
This User Gave Thanks to RudiC For This Post:
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chdist

CHDIST(1)																 CHDIST(1)

NAME

       chdist - script to easily play with several distributions

SYNOPSIS

       chdist [options] [command] [command parameters]

DESCRIPTION

       chdist is a rewrite of what used to be known as 'MultiDistroTools' (or mdt). Its use is to create 'APT trees' for several distributions,
       making it easy to query the status of packages in other distribution without using chroots, for instance.

OPTIONS

       -h, --help
	   Provide a usage message.

       -d, --data-dir DIR
	   Choose data directory (default: $HOME/.chdist/).

       -a, --arch ARCH
	   Choose architecture (default: `dpkg --print-architecture`).

       --version
	   Display version information.

COMMANDS

       create DIST [URL RELEASE SECTIONS]
	   Prepare a new tree named DIST

       apt-get DIST <update|source|...>
	   Run apt-get inside DIST

       apt-cache DIST <show|showsrc|...>
	   Run apt-cache inside DIST

       apt-rdepends DIST [...]
	   Run apt-rdepends inside DIST

       src2bin DIST SRCPKG
	   List binary packages for SRCPKG in DIST

       bin2src DIST BINPKG
	   List source package for BINPKG in DIST

       compare-packages DIST1 DIST2 [DIST3, ...]
       compare-bin-packages DIST1 DIST2 [DIST3, ...]
	   List versions of packages in several DISTributions

       compare-versions DIST1 DIST2
       compare-bin-versions DIST1 DIST2
	   Same as compare-packages/compare-bin-packages, but also runs dpkg --compare-versions and display where the package is newer.

       compare-src-bin-packages DIST
	   Compare sources and binaries for DIST

       compare-src-bin-versions DIST
	   Same as compare-src-bin-packages, but also run dpkg --compare-versions and display where the package is newer

       grep-dctrl-packages DIST [...]
	   Run grep-dctrl on *_Packages inside DIST

       grep-dctrl-sources DIST [...]
	   Run grep-dctrl on *_Sources inside DIST

       list
	   List available DISTs

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