qatom

Section: qatom (1)
Updated: May 2018
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NAME

qatom - split atom strings  

SYNOPSIS

qatom [opts] <pkg>  

DESCRIPTION

qatom parses strings into atoms and optionally compares them. The parsing into atoms results in CATEGORY, PN (package name), PV (package version), PR (package revision), SLOT and REPO. Next to these version qualifiers (e.g. >, <, or =) and optional * suffix are extracted. All but PN are optional.

Comparison of atoms returns the relationship between two parsed atoms. qatom does not allow to test conditions. It is possible to perform multiple comparisons by simply adding more arguments. Comparisons are, however, always performed two by two, so there must be an even count of arguments to the compare function.

The qatom applet is a direct wrapper around the atom parsing functionalities used by various other applets. As such this applet allows easy testing or atom parsing and comparison behaviour.  

OPTIONS

-F <arg>, --format <arg>
Specify a custom output format. The default format is
%{CATEGORY} %{PN} %{PV} %[PR] %[SLOT] %[pfx] %[sfx]
Conversion specifiers start with a % symbol and are followed by either { or [. Next is the name of the field to expand, followed by a matching } or ]. The difference between { and [ is that the latter is only printed if the field referred is set, while the former prints <unset> in that case.

The following fields are supported, which are inline with the variables from ebuild(5).

CATEGORY
The category of the package.
P
The package name and version without the ebuild revision.
PN
The package name.
PV
The package version without the ebuild revision.
PVR
The package version including ebuild revision, which is also printed when zero, unlike for PF.
PF
The package name, version and revision when not zero. Thus, a zero revision -r0 is not printed.
PR
The ebuild revision, when force printed, outputs -r0 when unset.
SLOT
The package slot, when force printed, outputs - when unset.
REPO
The package repository.
pfx
The package prefixes, that is version specifiers.
sfx
The package suffices, currently that is just the asterisk.
-c, --compare
Compare two atoms.
--root <arg>
Set the ROOT env var.
-v, --verbose
Force all expansions, basically treat all [ like {.
-q, --quiet
Ignored for compatibility with other qapplets.
-C, --nocolor
Ignored for compatibility with other qapplets.
-h, --help
Print this help and exit.
-V, --version
Print version and exit.

 

REPORTING BUGS

Please report bugs via http://bugs.gentoo.org/
Product: Portage Development; Component: Tools, Assignee: portage-utils@gentoo.org  

AUTHORS

Ned Ludd <solar@gentoo.org>
Mike Frysinger <vapier@gentoo.org>
Fabian Groffen <grobian@gentoo.org>
 

SEE ALSO

q(1), qcache(1), qcheck(1), qdepends(1), qfile(1), qgrep(1), qlist(1), qlop(1), qmerge(1), qpkg(1), qsearch(1), qsize(1), qtbz2(1), qtegrity(1), quse(1), qxpak(1)


 

Index

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
REPORTING BUGS
AUTHORS
SEE ALSO
LinuxReviews : manual page archive : man1