A revision number for a particular piece of software in a specific state.

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106
votes
3answers
128k views

Check package version using apt-get/aptitude?

Before I install a package I'd like to know what version i would get. How do I check the version before installing using apt-get or aptitude on debian or ubuntu?
17
votes
1answer
31k views

How to upgrade Debian stable (Wheezy) to testing (Jessie)? [duplicate]

I downloaded and installed Debian 7 Wheezy, the stable version, but I would like more recent apps and libs so I'd like to switch to testing version (aka Jessie). How do I proceed?
16
votes
4answers
15k views

How can I tell what version of linux I'm using?

Often times I will ssh into a new client's box to make changes to their website configuration without knowing much about the server configuration. I have seen a few ways to get information about the ...
15
votes
5answers
6k views

How can I tell what version of OS X I'm on from the command line?

I frequently find myself SSHing into various OS X machines, and it'd be useful if I could tell what version of OS X I was on when I'm doing that. uname -a doesn't quite work, since Darwin kernel ...
14
votes
2answers
548 views

Why do package names contain version numbers?

While working with Ubuntu and other Debian-based distros, I've noticed that packages in the software repos often contain the major version number. For example, Apache: apache2 Tomcat: tomcat7 PHP: ...
10
votes
6answers
2k views

What C library version does my system use?

How can I tell for sure what userland C library my system uses? Possible reasons to need this information include: There's a gigantic source package I am considering downloading which I'm sure will ...
9
votes
3answers
2k views

How to install multiple versions of the same package in Gentoo?

I would like to install two (or more) versions of the same packages on my Gentoo system. I know for sure there won't be any file clash, since there very few files installed and each of them is named ...
7
votes
3answers
4k views

How do I tell what version of Gentoo & Linux is running?

Is there a way to tell from Bash what distro version # I'm running and also what Kernel version is included?
6
votes
2answers
121 views

What is the rationale behind using non-numeric package component for the version?

In ubuntu (and not only in ubuntu) default repository you could see a package version like 2.2.14-5ubuntu8.12. Why do the maintainers give such a weird version in the central package repository? ...
6
votes
2answers
4k views

Where to download Linux Kernel source code of a specific version?

Is there a resource to download a specific kernel version source? For example, I want to get 2.6.36.2 sources to compare with this package and see what changes were introduced?
6
votes
2answers
469 views

Which sed version is not GNU sed 4.0?

I'm trying to figure out which version of sed that I've got on BusyBox 1.18.3. The --version output is cryptic. $ sed --version This is not GNU sed version 4.0 The following code is from the ...
6
votes
1answer
989 views

Multiple installed versions of git - centos

I manually installed git 1.6 a year or two ago. I noticed today that the 1.7 version is available in yum, and installed it (package git-all) I now get the following output: [root@ovz5197 ~]# git ...
5
votes
3answers
10k views

Viewing Linux Library / Executable version info

In Windows, EXE and DLL have version info, including at least the following fields: file version product version internal name product name copyright In Linux Library / Executable: Which fields ...
5
votes
2answers
401 views

Meaning of “rc5” in “linux kernel 2.6.37-rc5”

When I visited the kernel.org website to download the latest Linux kernel, I noticed a package named 2.6.37-rc5 in the repository. What is the meaning of the "rc5" at the end?
5
votes
1answer
49 views

What are the numbers after the version in the output of apt-cache policy?

This is the output of apt-cache policy firefox firefox: Installed: 26.0~linuxmint1+lmde Candidate: 26.0~linuxmint1+lmde Version table: *** 26.0~linuxmint1+lmde 0 500 ...
4
votes
3answers
14k views

How do I identify which Linux distro is running? [duplicate]

We have some new hardware in our office which runs its own customized Linux OS. How do I go about figuring which distro it's based on?
4
votes
3answers
940 views

Why doesn't uname -a return a useful identifier

I typed the command uname -a into my college's server and got this: 2.6.18-274.3.1.el5 #1 SMP Tue Sep 6 20:14:03 EDT 2011 i686 i686 i386 GNU/Linux Are they trying to hide the version of Linux that ...
4
votes
2answers
45 views

How to install a specific debian package

I want to install a particular version which is not available from apt-get utility but is available from https://packages.debian.org (like https://packages.debian.org/wheezy-backports/exfat-fuse for ...
4
votes
3answers
739 views

What distribution still supports the 2.6.x kernel?

I'm trying to use a Khepera III robot. The documentation says I need a Linux OS with kernel 2.6.x. An Ubuntu 8 image was provided at the website. When I created a virtual machine with that image, I ...
4
votes
3answers
2k views

How to programmatically determine the highest version kernel RPM installed?

What I want to script is something along the lines of: if [ uname -r is not == highest version of kernel RPM installed ] then echo "You need to reboot to use the latest kernel" fi The problem is, ...
4
votes
1answer
214 views

What do '+b#' packages versions mean in Debian?

Today I checked out my upgrades and saw 63 upgrades in Debian testing. Fine. I got curious because most of them are held back, so I used -V to see the versions. To my surprise, most of them where ...
4
votes
1answer
1k views

How can I revert a package to a specific version on Gentoo?

I'm a Debian user pretty much new to Gentoo. I wanted to install a specific version of a package namely the 1.39.0 version of dev-libs/boost, http://packages.gentoo.org/package/dev-libs/boost. But I ...
3
votes
3answers
3k views

How to know CentOS version?

How to know version of a CentOS server without access to any graphical interface? I've tried several commands: # cat /proc/version Linux version 2.6.18-128.el5 (mockbuild@hs20-bc1-7.build.redhat.com) ...
3
votes
3answers
263 views

What is the preferred way to install new versions of software?

I have installed Ubuntu Server 10.10 and now I want to install some software like PostgreSQL, Nginx and PHP. But what is the preferred way to get the latest stable version of the software? E.g I ...
3
votes
6answers
243 views

What I can I do to make the transition to some new computer hardware safe and smooth?

I normally use machine A, and I make backups of A onto a fileserver B. Sooner or later, I will lose machine A for one reason or another. Its hard drive wears out, or it gets hit by lightening, or some ...
3
votes
5answers
3k views

How to know which Linux and which version I am using

When I run cat /proc/version command in terminal, I got below output: Linux version 2.6.18-348.1.1.0.1.el5 (mockbuild@ca-build56.us.oracle.com) (gcc version 4.1.2 20080704 (Red Hat 4.1.2-54)) #1 SMP ...
3
votes
2answers
1k views

What does file version mean: lsattr -v

lsattr -v gives me the "version number" of given file(s). What does this mean? On Redhat 7.3, I could've sworn all the version numbers were 1 except those I changed with chattr -v. On Fedora 11, ...
3
votes
2answers
35 views

Using Linux kernel config file from version to version

I have currently Linux Kernel 2.6, which works for my hardware. Now I want to compile Linux kernel 3.2 for the same hardware. Can I use the same .config of 2.6 directly for v3.2? Is there any ...
3
votes
2answers
2k views

How can I find which version of libmysqlclient is installed in Centos?

I have a custom exe provided to me but to install it I need an older version of libmysqlclient. How can I check which version is installed?
2
votes
4answers
108 views

Is there a structured format of version info for OS-level executables?

I am looking for a structured format of version info for OS-level executables, such as in /usr/bin and /usr/local/bin. The problem we are having is the inconsistent architecture between our PROD and ...
2
votes
1answer
586 views

Which version of unix from a shell?

I recently started a new job, and was told that I need to log on (Via shell) to a particular unix system. I'm trying to figure out a few peculiarities with the system, but first I need to know what ...
2
votes
2answers
80 views

How can I find out which version of screen I am using?

Further to my previous question on screen not splitting my terminal , I got to the point where I can split my terminal horizontally but not vertically . This documentation says that vertical splitting ...
2
votes
2answers
201 views

How can I get the version of the pgrep & pkill commands?

I looked at the manpages and there is no -v or --version argument for pgrep or pkill. How can i get some info on the version? I'm asking because on my version of Ubuntu man pgrep is giving me a ...
2
votes
2answers
2k views

Numbering convention for the linux kernel?

What is the convention for numbering the linux kernels? AFAIK, the numbers never seem to decrease. However, i think I've seen three kinds of schemes 2.6.32-29 2.6.32-29.58 2.6.11.10 Can anybody ...
2
votes
1answer
3k views

How to upgrade OpenSSL to 1.0.1h

I'm currently running Ubuntu 13.10 and my OpenSSL version is 1.0.1e. As per latest security warning, I'd like to upgrade it to 1.0.1h. I've tried apt-get upgrade openssl (don't want to upgrade ...
2
votes
3answers
1k views

Requires: perl(Compress::Raw::Zlib) = 2.052

Im trying to run a yum update but getting stopped by dependencies. I have installed rpmforge el6 which i need for other packages. Error: Package: perl-IO-Compress-2.052-1.el6.rfx.noarch ...
2
votes
1answer
9 views

Is it possible to use multiple branch of the same library to make multiple sofware which require different version of this Library work?

Newbie question, I know, but I can't find any acceptable answer on the internet. I was wondering if it's possible to have multiple instances of a library in Linux. Example : Software A need the ...
2
votes
1answer
89 views

What do all the letters and numbers in a Red Hat RPM version number mean e.g. openssl-devel-0.9.8e-27.el5_10.1?

What do all the letters and numbers in the rpm name openssl-devel-0.9.8e-27.el5_10.1 mean? I recognize the openssl-devel-0.9.8e part because that's the same number applied by the developement team at ...
2
votes
1answer
1k views

Why I got error: `error while loading shared libraries: libmpich.so.3`?

I installed mpich-3.0.4 not in a default location. I installed it based on the mpich installer's guidance. However when I try to run: mpiexec -n 4 -f machinefile ./mpich-3.0.4/examples/cpi It ...
2
votes
8answers
769 views

Oldest Linux machine you still run

What is your oldest machine you ever installed Linux on and currently still run? What are the specs, kernel version or distro, and for what purpose?
2
votes
1answer
2k views

set default g++ on CentOS?

I'm a linux virgin and have only been programming c++ for 2 weeks, so please bear with me. I'm trying to set the default g++ to 4.7.2 which I'm told by my host is installed (I'm also told that c++11 ...
1
vote
1answer
182 views

Getting contradictory information regarding the linux distribution

I wanted to check which linux distribution is running on a remote linux box given to me .i have see this answer on super user which says that LSB tools provide this information And then it goes ...
1
vote
2answers
158 views

What does longterm mean on kernel.org?

It's fairly easy to understand EOL, mainline and stable kernel, but I'm not sure about longterm here, What does it mean, or how does it differ from stable kernel?
1
vote
2answers
507 views

Version Control System similar to Bazaar needed for CentOS 4.8 dedicated hosting server

I have recently had to have our dedicated server rebuilt as core system files were deleted. But that's another story... Before the rebuild, we were merging, branching, and committing changes to a ...
1
vote
1answer
320 views

Downgrade php version on debian

I have a big problem with my sites after I migrated to a new server. The only difference is the php version. On the old server I have 5.3.3-7+squeeze15 and on the new server there is ...
1
vote
3answers
1k views

Minor upgrades and version numbers on CentOS

I installed CentOS 6.0. Later I ran yum update to apply software updates. After that my operating system version changed to 6.3. Why did the version change? How far up will it go? How can I choose ...
1
vote
1answer
33 views

What this page means for the Debian's package version

I am trying to figure out what these web page means for the version. I know that the epoch is the number previous the double dot. But I can't figure out what this all means ? I found this here
1
vote
1answer
227 views

Update kernel at fedora 16 to 17 - How to remove unused files?

I want to update kernel at fedora 16 to 17. So I need to delete unused files. find /etc /var -name '*?.rpm?*' Is that enough or need more extensions?
1
vote
1answer
109 views

Shellshock - not vulnerable with bash version 4.1?

We have several Amazon servers. It has bash version 4.1.2. Kaspersky claims that all bash versions up to 4.3 are unsafe. When I do this test... env x='() { :;}; echo vulnerable' bash -c 'echo hello' ...
1
vote
2answers
47 views

Library version, API version and soname how should it be done?

When I've a library called libfoo and its version is 0.4.2 where 0.4 is the API version and 2 the release number which may add new API functions. Should the soname be libfoo.so.0.4, libfoo.so.0.4.2 ...