The command to finding out if package is installed in Linux is depend upon your Linux distribution. Following are commands for different distributions.
Jump to your distribution:
* Debian / Ubuntu Linux
* Red Hat / Fedora Linux / Cent OS / Suse Linux
Debian / Ubuntu Linux
Use dpkg command, which is package manager for Debian. Suppose you want to find out package apache-perl or sudo is installed or not, type command:
$ dpkg -s apache-perl
OR
$ dpkg -s sudo
Output:
Package: sudo Status: install ok installed Priority: optional Section: admin Installed-Size: 396 Maintainer: Bdale Garbee Architecture: i386 Version: 1.6.8p12-4 Replaces: sudo-ldap Depends: libc6 (>= 2.3.5-1), libpam0g (>= 0.76), libpam-modules Conflicts: sudo-ldap Conffiles: /etc/pam.d/sudo e3aaa79c2a00244cdfd17117127f8993 /etc/init.d/sudo 64f882a713108e70dc6133444177281f Description: Provide limited super user privileges to specific users Sudo is a program designed to allow a sysadmin to give limited root privileges to users and log root activity. The basic philosophy is to give as few privileges as possible but still allow people to get their work done. . This version is built with minimal shared library dependencies, use the sudo-ldap package instead if you need LDAP support.
Use file /var/lib/dpkg/available to find out all package names available to you. Or you can use following command (list all packages in /var/lib/dpkg/status):
$ dpkg-query -l
You can also try to match package name using wild cards:
$ dpkg-query -l 'libc6*'
Once you've found package name, use the following command to get exact status (whether it is installed or not):
$ dpkg-query -W -f='${Status} ${Version}\n' apache-perl
Output:
install ok installed 1.3.34-2
Red Hat Enterprise / Fedora Linux / Suse Linux / Cent OS
Under Red Hat/Fedora Linux use rpm command:
$ rpm -qa | grep {package-name}
For example find out package mutt installed or not:
$ rpm -qa | grep mutt
Output:
mutt-1.4.1-10
If you don't get any output ( package name along with version), it means package is not installed at all. You can display list all installed packages with the following command:
$ rpm -qa
$ rpm -qa | less
See also:
- Rpm command cheat sheet for Linux
- dpkg command cheat sheet for Debian Linux
- Linux: Debian package management cheat sheet with an in-depth explanation
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{ 7 comments… read them below or add one }
Hi to all,
This is my first massage over here& i hope i will get full support.
How to open usermap.cfg file on NetApp server?- As i have to check whether unix user login is mapped correctly with Windows login.
As the main problem which few of the users are having is as below —
They are NOT able to map from Windows any network
drive (unix accounts) due to they have not access to their share drive.
It ask me for login and password, BUT earliear it never asked me for my windows login and password . It’s been working till the end of the year 2006.
Please suggest solutions—–
Many thanks in Advance
amar
just a small addition –
on Gentoo Linux just do a:
qlist -I
or
cat /var/lib/portage/world
on CentOS or other “yum”-based systems:
yum list installed
how to see the programs and features in redhat linux (e.g– in windows we can check the same through control panel–progrmas)
@john: On RedHat – which is a rpm package management based distribution – you should can use i.e.:
rpm -qa
to list all installed packages or
rpm -qi
to get out details about the installed package.
hth
cheers,
Niels Dettenbach
Syndicat – IT & Internet
how do i verify packages that are installed without using rpm, i mean recently i installed squid using make, make all, configure configure-install
after this, how do I check this package is installed?
…this is not possible as installing “by hand” (make install) has nothing to do with a “package” nor package management.
To find out if i.e. squid was installed just try to locate the squid binary by where, locate or find, even if you build and install software from sources by make.
If you use a port management system from i.e. pkgsrc, getoo portage or even FreeBSD the port management counts each modified and installed file of a port to make it possible to see which file belongs to which port (package) or which are installed etc.
this might be another story.
Thank you very much, I have another issue, I have Installed texlive but I still get an error message in my crm ” pdf latex not installed”, so do you know how check if any software is installed or not ? It’s different from packages, isn’t it ?
Thank you