Free Software Blog

Change to Wordpress

Thursday, January 05, 2006

I am in the process of changing this blog over to a wordpress based install. I have used a free hosting provided Zeeblo and currently using a free .be domain name.
You can view the current blog at http://www.fslog.be and am planning to buy a .com domain.
Please support me in buying a domain name by paypal to srinivasanr@gmail.com.
Update: I have bought a new domain name http://www.fslog.com and this is the new home. I have to change the template to automatically redirect the page.

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ODOC: mkdir

Monday, January 02, 2006

mkdir -- MaKe DIRectories.

Summary :

mkdir Create the DIRECTORY(ies) with the specified names, if they do not already exist.

Examples :

$ mkdir dir1 -- Create a dir1, if dir1 is NOT an existing file or directory.

$ mkdir dir1 dir2 dir3 -- Create 3 Directories.

$ mkdir -m 744 dir1 -- Create a dir1 with specified permission mode.

$ mkdir -p dir1/dir2/dir3 -- Make any missing parent directories for each argument. Suppose if dir1 or dir2 is NOT exist, then that dir will be created before creating the dir3.

$ mkdir -v dir1/dir2/dir3 -- Print a message for each created dir.

Read : man mkdir

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Krusader - File Manager for GNU/Linux

Monday, January 02, 2006

Krusader is an advanced twin panel (commander style) file manager for KDE and other desktops in the *nix world, similar to Midnight Commanger or Total Commander. It provides all the file management features you could possibly want along with extensive archive handling, mounted filesystem support with a built-in mount manager, search module. It also has an internal viewer/editor. You can also rename whole batches of files.
It also has FTP/SAMBA accessing with SFTP/SCP support. So you can safely send your files accross the network. It is a nice tool and I must thank Iain for pointing out this one.

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ODOC: jobs

Sunday, January 01, 2006

jobs -- Lists the active jobs

Summary :

jobs is bash build-in command, which is used to list the actives jobs in the current shell.

Examples :

$ sleep 60 & -- Just run this command 5 times. Create dummy active jobs for testing.

$ jobs -- List all active jobs.

$ jobs -l -- List all active jobs with pid.

$ jobs -p -- List only the pid of all active jobs.

$ jobs -n -- List only jobs that have changed status since the last notification are printed.

$ jobs -r -- Show only running jobs.

$ jobs -s -- Show only stopped jobs.

Read : man jobs / help jobs (in Bash Shell)

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Baobab - Analyze disk space graphically

Sunday, January 01, 2006

Baobab is cool little tool to analyze disk space usage graphically. It displays the space used by directories on your hard drive, so you know what’s eating up all your space. It is sort of the like the application called “tree” that’s available for windows. Baobabs are large trees, usually found in Africa - so that’s a real nice name for the tool.

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ODOC: rm

Sunday, January 01, 2006

rm -- ReMove files or directories.

Summary :

rm removes each specified file. By default, it does not remove directories.

Examples :

$ rm myfile -- Remove the myfile from current dir.

$ rm f1 f2 f3 -- Remove f1,f2 and f3.

$ rm f? -- Remove all files, whose name start with f and followed by single char.

$ rm f* -- Remove all files, whose name starting with f.

$ rm -i myfile -- Ask for interactive conformation (Y/N).

$ rm -f myfile -- Force, Ignore nonexistent files.

$ rm -d mydir -- Remove the directory.

$ rm -r mydir -- Remove the contents of dirs recursively.

$ rm -v myfile -- Explain what is being done.

$ rm "my file" -- Removing a file, whose name has space.

$ rm -- -h -- This is very useful for removing files whose name start with a '-'
'--' === End of command line options.

Read : man rm

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Happy New Year

Saturday, December 31, 2005

First a very Happy New Year to all. I must first apologize for not posting regularly. But yesterday I went for a reunion among my old school friends and we had a great party. I think this year onwards I must try to post regularly and also try to write nice articles. I am planning to shift my blog from Blogger to a Wordpress one. I must get some money first and try to get some space. If you feel like donating to it, please mail me at srinivasanr@gmail.com.
And Happy New Year again.

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ODOC: wall

Thursday, December 29, 2005

wall -- Send a message to everybody's terminal.

Summary :

Wall sends a message to everybody logged. The length of the message is limited to 20 lines. You MAY need root permission, on some system, to run this command. This command is used to pass the some critical information to all.

Examples :

# wall "Welcome" -- Send the string "Welcome" to all.

# wall

Read : man wall

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ODOC: who

Wednesday, December 28, 2005

who -- show WHO is logged on

Summary :

who prints the info (login name, terminal line, login time, and remote hostname or X display) abt abt each user currently logged on.
who uses /var/run/utmp file to know abt the current users.

Examples :

$ who -- Show who are all logged on.

$ who -H -- Show info with header.

$ who -m -- only hostname and user associated with stdin.

$ who -q -- Show currently logged username and count.

$ who -r -- Show the current run level.

$ who -s -- Short form.

$ who -T -- Add user's message status as +, - or ?

$ who -a -- Show all info.

$ who am i -- Your detail.

$ who mom likes -- !!?? :-)

$ who /var/log/wtmp -- Who has previously logged on.

Read : man who

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ODOC: w

Tuesday, December 27, 2005

w -- show Who is doing What

Summary :

w is part of the procps package. w shows information about the users currently on the machine, and their processes. The header shows, in this order, the current time, Uptime, no. of current users, & load averages for the past 1, 5, and 15 minutes.

JCPU -- The time used by all processes attached to the tty. It does not include past background jobs, but does include currently running background jobs.

PCPU -- The time used by the current process, named in the "WHAT".

Examples :

$ w -- Show header, users and processes Information.

$ w bharathi -- Show information about bharathi (user) only.

$ w -h -- Don't show header info.

$ w -f -- Don't show FROM (remote hostname) field.

$ w -s -- Short format. Don't show login, JCPU and PCPU times.

$ w -u -- Ignores the username while figuring out the current process and CPU times of the current tty.

Read : man w

Atlast my exams were over and I am now free for a week. I think I will resume my blogging and try to write new articles.

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