deb-version - Linux
Overview
The deb-version
command displays the version of a Debian package or a Debian package file. It is commonly used to retrieve the version information of installed packages or to verify the version of a package before installation.
Syntax
deb-version [options] <package-name> [<package-file>]
Options/Flags
- -v, –verbose: Displays additional information, including the package description, architecture, and dependencies.
- -h, –help: Displays the command help screen and exits.
- –version: Displays the
deb-version
version and exits. - -f, –file: Specifies the path to a Debian package file to retrieve the version from.
Examples
Getting the version of an installed package
deb-version dpkg
Getting the version from a Debian package file
deb-version --file /path/to/package.deb
Displaying verbose information
deb-version -v apache2
Common Issues
Error: No such package available
This error occurs when the specified package is not installed or does not exist. Check the package name and ensure that it is installed.
Error: Failed to open package file
This error occurs when the specified package file is invalid or cannot be opened. Make sure the file exists and is a valid Debian package.
Integration
deb-version
can be used in conjunction with other commands, such as apt-get
and dpkg
, for advanced package management tasks.
Example: Checking if a package is up-to-date
if deb-version <package-name> | grep "$(apt-cache policy <package-name> | grep Installed)" > /dev/null; then
echo "Package is up-to-date"
else
echo "Package is not up-to-date"
fi
Related Commands
apt-get
: Package manager for Debian and Ubuntu-based systems.dpkg
: Package management tool for Debian and Ubuntu-based systems.rpm
: Package manager for Red Hat Enterprise Linux and Fedora-based systems.