Changing newline to spaces using just echo Show Sample Output

Creates a consistent datapumpt export on an Oracle database with the current sequence number, while the system is running and changes happens on the database.

# newline to space; the whack before dollar-underbar is required alias nl2space="perl -ne 'push @F, \$_; END { chomp @F; print join(qq{ }, @F) , qq{\n};}' " # newline to comma; the whack before dollar-underbar is required alias nl2,="perl -ne 'push @F, \$_; END { chomp @F; print join(qq{,}, @F) , qq{\n};}' " PROMPT> cat /tmp/foo foo-001 foo-002 foo-003 foo-004 foo-005 foo-006 foo-007 foo-008 foo-009 foo-010 # 'tr' does not give a newline after it run. Makes a messy commandline. PROMPT> cat /tmp/foo|tr "\n" ' ' foo-001 foo-002 foo-003 foo-004 foo-005 foo-006 foo-007 foo-008 foo-009 foo-010 $PROMPT> tr "\n" ' ' /tmp/foo # 'tr' does not take arguements PROMPT> tr "\n" ' ' /tmp/foo tr: extra operand `/tmp/foo' Try `tr --help' for more information. # 'nl2space' is a filter and takes arguements, adds a newline after it runs. PROMPT> cat /tmp/foo| nl2space foo-001 foo-002 foo-003 foo-004 foo-005 foo-006 foo-007 foo-008 foo-009 foo-010 PROMPT> nl2space /tmp/foo foo-001 foo-002 foo-003 foo-004 foo-005 foo-006 foo-007 foo-008 foo-009 foo-010

Mostly for Norwegians, but easily adoptable to others. Very handy if you are brainstorming for a new domainname. Will only display the available ones.. You can usually do this better with dig, but if you dont have dig, or the TLD only have an online service to check with, this will be usefull.. Show Sample Output

this is helpful because dmesg is where i/o errors, etc are logged to... you will also be able to see when the system reboots or someone attaches a thumb drive, etc. don't forget to set yourself up in /etc/aliases to get roots email.

Usage: clfavs username password num_favourite_commands file_in_which_to_backup

A little bash daemon

concatenates avi files

recently some in the #linux shared this. to find out the kernel version name from the binary without using uname Show Sample Output

Does what summary says

Kills the pid you want to kill Show Sample Output

You can set the previous bash command as the terminal title by this command. Explanation: -trap assigns a command to execute at a given bash signal. -in the $BASH_COMMAND you find the last command -you can set the terminal title with the escape sequence: \e]0;this is the title\007 -to let the echo care about the backslashes give the -e to it Since trap is a built in bash command you find more informatin in 'man bash'for more Source: http://www.davidpashley.com/articles/xterm-titles-with-bash.html

Same as the cool matrix style command ( http://www.commandlinefu.com/commands/view/3652/matrix-style ), except replacing the printed character with randomness. The command mentioned is much faster and thus more true to the matrix. However, mine can be optimized, but I wasted ... i mean spent enough time on it already Show Sample Output

Replace 'SHOWNAME' with the name of the TV show. Add -n to test the command without renaming files. Check the 'sample output'. Show Sample Output

Works 99.9% of the time; so far never required a more complex expression in manual input.

Go to /

Although rm is protected against it, there are many commands that would wreak havoc on entering the obvious ".*" to address "dot-files". This sweet little expression excludes the dirs "." and ".." that cause the problems. Show Sample Output

Convert string to array using echo and sed =) Show Sample Output

Intentional hash in the beginning. May run a looong time. Wipes your data for real. Was meant to be /dev/urandom - I mistyped it. :-)

this string of commands will release your dhcp address, change your mac address, generate a new random hostname and then get a new dhcp lease.

open an application to wherever you like on your current display. the first set of #'s (120x30) denotes size of window opened in, and the second set (+1280+0) identifies the location. Either set can be used alone, or with the other. Also, opening gnome-terminal with this option requires it to be "--geometry" for some reason.