Posts Tagged ‘bash’

On the fly compression of a tar-ball or mysqldump


2010
07.14

Just to jot it down lest I forget:

Tar’ing the local directory and streaming the tarball straight to gzip:

tar cvf - . | gzip > target.tar.gz

MySQLdump’ing directly to gzip: (more…)

Secure SSH Tunneling – at no extra cost


2010
06.19

Assuming you have a Windows machine and you interact with Linux boxen at any stage, chances are high that you have used and interacted with PuTTY at one stage or another. That beautiful, less than 2 sec, 444K download of a tool (currently at version 0.60 beta) allows you to SSH, COM-direct, RSH, Telnet etc from the desktop. Both examples below relate to MySQL port tunneling.

SSH Tunnels using the Bash command line

Running on a proper machine (or even a Windows with Cygwin or a Mac Terminal) allows you to quickly tunnel a session to a remote server: (more…)

Install Webmin on Ubuntu


2010
05.31

Just a quick note (as I keep forgetting, and a cut-and-paste solution is a quicker time to market) – but you knew that already. Installing Webmin is quite simple (download directly, or from the mirrors). Currently, 1.510-2 is the latest version – check on www.webmin.com for further details. As an aside, the book Webmin Kompakt – by Holger Reibold – is available for download!

So here’s a simple step-by-step: (more…)

Testing POP3 and IMAP servers from the command line in CMD or bash


2010
04.25

It’s quite simple, really: POP3 (Exchange, dovecot etc) you know, IMAP (Exchange, dovecot, courier etc) you know — so this is just a recap, right? You know how to telnet into the machine — in Vista or Windows 7, you may need to install it separately using “Add/Remove Programs”, or just use Putty in Telnet mode…  otherwise, apt-get install telnet if it’s not on your machine (or yum install telnet)

POP3:

telnet SERVER 110 (more...)

Wipe all mp3s and avis from the filesystem


2009
09.08

So you want to run a script that removes all mp3 and avi files off the filesystem. One way (in bash) as below. Comment, suggestions and feedback are welcome :) Using $EUID to check for root user, and $IFS to check for line breaks as the file names has spaces in them. IFS is saved to a temp variable, reset and then re-instated afterwards. C is the counter. Got two litte for loops in bash with backtick execution.

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