Peter Friese » Linux

Linux shell hacking cont’d

Peter Friese — Thu, 10 Aug 2006 12:13:01 +0000

Free space on your system:
df

Copying files from one machine to another one:
scp sourcefile username@targetmachine:targetfile

More Linux shell hacking

Peter Friese — Wed, 09 Aug 2006 08:27:32 +0000

Steve Litt has written a nice article: http://www.troubleshooters.com/linux/quickhacks.htm

Bugzilla trouble

Peter Friese — Mon, 03 Jul 2006 10:06:01 +0000

Back from holidays, I discovered that our customer migrated our development server to a new hardware. Without telling anybody of the devlopment team! First thing I noticed was that Bugzilla didn't work any more: I just got error messages like this: data/versioncache did not return a true value at globals.pl line 628. Googling around returned this mailing list entry which recommends rerunning checksetup.pl. Running ./checksetup.pl in the installation directory (under /etc/var/www/bugzilla) did the trick: everything is fine again. On to the next problem!

Installing Tomcat

Peter Friese — Wed, 19 Apr 2006 07:53:07 +0000

Here is a nice how-to on how to install Tomcat on Linux. Includes instructions on how to run Tomcat in the context of a special user and how to write shell scripts for (re)starting Tomcat.

More Linux commands that might come in handy

Peter Friese — Tue, 18 Apr 2006 12:13:58 +0000

This series on Linux contains quite some useful tips and commands.

System integration

Peter Friese — Thu, 09 Mar 2006 12:09:30 +0000

Had to do some system integration this week. It's not what I really like. System integration should better be called "taming wild pieces of bits and bytes". However, here are some Linux commands I needed that I will likely forget if I do not write them down:

Log in to a remote system, specifying a user name:
ssh hostname -l username
Unpack a .tar.gz file:
tar xvfz filename.tar.gz
Restart sshd:
/etc/init.d/sshd restart
Restart Tomcat:
/etc/init.d/tomcat restart
Text based web browsers:
1. w3m
2. lynx
find out which process is listening on which ports:
netstat -p
(really) kill a process:
kill -9
find out the process id of a java process:
ps aux | grep java

Likewise, here are some Windows commands that might come in handy:

Need to start a number of PuTTY sessions from one batch file? Use the start command:
start putty -load session_name start putty -load another_session_name