While the Lakers were celebrating their championship, and Roger Federer was getting ready to defend his Wimbledon title, this is what happened at The Geek Stuff this week.
Monday:
The Magic ~: Bash Tilde Expansion with 5 Examples
Other than “cd ~”, to jump to your home directory, ~ can do lot more tricks. For example:
- ~username
- ~+
- ~-
- cd ~+2
- cd ~-5
Promise me that you’ll never disrespect the ~ again.
Tuesday:
Understand at, atq, atrm, batch Commands using 9 Examples
Lazy sysadmin is the best sysadmin. Use the at* commands explained here to schedule your routine jobs.
- at -f watch-soccer.txt now + 1 min
- atrm 10
- at noon
Now that you’ve scheduled your jobs, get back to work! – Watch the world cup soccer.
Wednesday:
4 Easy Steps to Install and Configure VMware Server 2 on Linux
This is a new series of VMware article we started. In the future articles we’ll be discussing about the following:
- ESXi installation
- vSphere installation
- VM creation
- datastore management etc.,
Thursday:
Perl Array Reference and Dereference Tutorial With Practical Examples
- $array_ref = \@array; – Reference
- @{ $array_ref }; – Dereference
We also spoke how to to convert the following ugly looking Perl code-snippet to something readable.
$ { $ { $ { $array_ref } [2] } [2] } [1]
Friday:
How to do Perl Hash Reference and Dereference
As a follow-up to our array reference and dereference, this is a quick FAQ on how to do the same on Perl Hash.
- $hash_ref = \%author; – Reference
- $name = $ { $hash_ref} { name }; – Dereference
We also combined few quick FAQs on how to install / remove packages on following OS.
- Debian: How to Install or Remove DEB Packages Using dpkg
- Sun Solaris: How to Install or Remove Sparc Packages Using pkgadd and pkgrm
- HP-UX: How to Install or Remove DEPOT Packages Using swinstall and swremove
Linux provides several powerful administrative tools and utilities which will help you to manage your systems effectively. If you don’t know what these tools are and how to use them, you could be spending lot of time trying to perform even the basic administrative tasks. The focus of this course is to help you understand system administration tools, which will help you to become an effective Linux system administrator.Get the Linux Sysadmin Course Now!
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My name is Ramesh Natarajan. I will be posting instruction guides, how-to, troubleshooting tips and tricks on Linux, database, hardware, security and web. My focus is to write articles that will either teach you or help you resolve a problem. Read more about
{ 2 comments… read them below or add one }
[root ~]# ~root
bash: /root: is a directory
[root ~]# ~+
bash: /root: is a directory
[root ~]# cd ~+2
bash: cd: ~+2: No such file or directory
[root ~]# cd ~-5
bash: cd: ~-5: No such file or directory
did i miss something?
Ohh, sorry, i’m not very familiar with bash)