TechTrouts.com » linux http://techtrouts.com Doin' the dev dance o/ Thu, 23 Jul 2009 10:42:09 +0000 en hourly 1 http://wordpress.org/?v=3.0 Application deployment shell script using rsync http://techtrouts.com/application-deployment-shell-script-using-rsync/ http://techtrouts.com/application-deployment-shell-script-using-rsync/#comments Thu, 07 May 2009 22:14:07 +0000 Carlos Ouro http://techtrouts.com/application-deployment-shell-script-using-rsync/ Hi all,

here is a simple deployment shell script (.sh) using rsync to deploy your local application to a productive location.

You can download it here.

Follow the README file for setup and usage.

Feedback comments are always welcome :)

]]> http://techtrouts.com/application-deployment-shell-script-using-rsync/feed/ 0 clear file contents on an unix command line http://techtrouts.com/clear-file-contents-on-a-unix-command-line/ http://techtrouts.com/clear-file-contents-on-a-unix-command-line/#comments Tue, 17 Jun 2008 12:05:16 +0000 Carlos Ouro http://techtrouts.com/clear-file-contents-on-a-unix-command-line/ this one is pretty useful.
in order to clear the contents of “file.ext”, just:

$>file.ext

You’re actually just putting a null content on the file, but it’s a very effective way to quickly clear a file contents on unix, especially if you want to keep permissions, etc.

Very useful for clearing error logs.

]]> http://techtrouts.com/clear-file-contents-on-a-unix-command-line/feed/ 1 how to install yum on Red Hat Enterprise Linux 4 http://techtrouts.com/how-to-install-yum-on-red-hat-enterprise-linux-4/ http://techtrouts.com/how-to-install-yum-on-red-hat-enterprise-linux-4/#comments Mon, 16 Jun 2008 15:14:59 +0000 Carlos Ouro http://techtrouts.com/how-to-install-yum-on-red-hat-enterprise-linux-4/ This case applies to most Red Hat Enterprise Linux 4, from i386 to i686 machines, i’ve successfully used it on our Red Hat Enterprise Linux ES release 4 (Nahant Update 6):
To use it for other systems / architectures, check the packages given at (check).

1. Get the main packages

(check) http://dag.wieers.com/rpm/packages/yum/

$wget http://dag.wieers.com/rpm/packages/yum/yum-2.4.2-0.4.el4.rf.noarch.rpm

(check) http://rpmfind.net/linux/rpm2html/
search.php?query=libsqlite.so.0&submit=Search+…&system=&arch=

$wget ftp://fr2.rpmfind.net/linux/PLD/dists/ac/ready/i386/libsqlite-2.8.15-1.i386.rpm

(check) http://rpmfind.net/linux/rpm2html/
search.php?query=python-elementtree&submit=Search+…&system=&arch=

$wget ftp://rpmfind.net/linux/dag/redhat/el4/en/i386/dag/RPMS/python-elementtree-1.2.6-7.el4.rf.i386.rpm

(check) http://rpmfind.net/linux/rpm2html/
search.php?query=python-sqlite&submit=Search+…&system=&arch=

$wget ftp://rpmfind.net/linux/dag/redhat/el4/en/i386/dag/RPMS/python-sqlite-0.5.0-1.2.el4.rf.i386.rpm

(check) http://rpmfind.net/linux/rpm2html/
search.php?query=urlgrabber&submit=Search+…&system=&arch=

$wget ftp://rpmfind.net/linux/dag/redhat/el4/en/x86_64/dag/RPMS/python-urlgrabber-2.9.7-1.2.el4.rf.noarch.rpm

2. Install Rpm’s

$rpm -ivh libsqlite-2.8.15-1.i386.rpm
$rpm -ivh python-elementtree-1.2.6-7.el4.rf.i386.rpm
$rpm -ivh python-sqlite-0.5.0-1.2.el4.rf.i386.rpm
$rpm -ivh python-urlgrabber-2.9.7-1.2.el4.rf.noarch.rpm
$rpm -ivh yum-2.4.2-0.4.el4.rf.noarch.rpm

3. Setup the Repository
(check) http://dag.wieers.com/rpm/packages/rpmforge-release/

$wget http://dag.wieers.com/rpm/packages/rpmforge-release/rpmforge-release-0.3.6-1.el4.rf.i386.rpm
$rpm -ivh rpmforge-release-0.3.6-1.el4.rf.i386.rpm

4. Yum update all packages

$yum update
]]> http://techtrouts.com/how-to-install-yum-on-red-hat-enterprise-linux-4/feed/ 45 How to check Architecture from command line http://techtrouts.com/how-to-check-architecture-from-command-line/ http://techtrouts.com/how-to-check-architecture-from-command-line/#comments Mon, 16 Jun 2008 14:40:02 +0000 Carlos Ouro http://techtrouts.com/how-to-check-architecture-from-command-line/ use:

$uname -m
]]> http://techtrouts.com/how-to-check-architecture-from-command-line/feed/ 0 How to check if unix based machine is linux from command line http://techtrouts.com/how-to-check-if-machine-is-linux-from-command-line/ http://techtrouts.com/how-to-check-if-machine-is-linux-from-command-line/#comments Mon, 16 Jun 2008 14:37:51 +0000 Carlos Ouro http://techtrouts.com/how-to-check-if-machine-is-linux-from-command-line/ use:

uname -s

Linux Systems return “Linux”.
The Macs, for example, return “Darwin”.

]]> http://techtrouts.com/how-to-check-if-machine-is-linux-from-command-line/feed/ 0 how to check linux distro on a command line http://techtrouts.com/how-to-check-linux-distro-on-a-command-line/ http://techtrouts.com/how-to-check-linux-distro-on-a-command-line/#comments Mon, 16 Jun 2008 14:29:39 +0000 Carlos Ouro http://techtrouts.com/how-to-check-linux-distro-on-a-command-line/ For what i know, there is no standard way to know for sure…
but each Distro have their own version file you can cat somewhere.
Try these:

- “$cat /etc/redhat-release” will show you information for red hat based distros.

- “$cat /etc/SuSE-release” for SUSE based distros.

- “$cat /etc/mandrake-release” for mandrake distros.

- “$cat /etc/debian_version” for debian based distros.

- “$cat /etc/UnitedLinux-release” might also return some more information.

I also found this useful tip at linuxhelp.net:
You *might* get some clues by running “uname -r” which will show you kernel version – Some ditributors will rename the kernel to make it specific to their distro (eg, RHEL kernels have RHEL in their name)

Note:  As pointed out by Ricardo “$cat /etc/debian_version” won’t return the distro itself, but the version of the distro. Sorry :/

]]> http://techtrouts.com/how-to-check-linux-distro-on-a-command-line/feed/ 3 How to check Linux version from command line http://techtrouts.com/how-to-check-linux-version-from-command-line/ http://techtrouts.com/how-to-check-linux-version-from-command-line/#comments Mon, 16 Jun 2008 13:42:11 +0000 Carlos Ouro http://techtrouts.com/how-to-check-linux-version-from-command-line/ To check your linux version from command line:

$cat /proc/version

Go to How to check Linux Distro from command line for more information.

]]> http://techtrouts.com/how-to-check-linux-version-from-command-line/feed/ 1