recursive find and replace. important stuff are grep -Z and zargs -0 which add zero byte after file name so sed can work even with file names with spaces.

Useful for creating MAC addresses for virtual machines on a subnet. 00:16:3e is a standard Xen OID, change as needed. Show Sample Output

Sometimes when I find a new cool command I want to know: 1.- which package owns it, and 2.- are there any other cool commands provided by this package? Since I don't necessarily need to know always both, I don't use this version, but I bundle it into two separate functions: # get command package owner # it can work without the full path, but sometimes fails, so better to provide it with whereis command owner () { pacman -Qo `whereis $1 | awk '{print $2}'` } whatelse () { package=`owner ${1} | sed -e 's/.*is owned by \([[:alpha:]]\+\).*/\1/'` pacman -Ql $package | grep 'bin' } Show Sample Output

Useful to duplicate and change iptables rules

Grabs the ip2location site and removes everything but the span tag containing the country value. Place it inside your .bashrc or .bash_aliases file. Show Sample Output

Just a few minor changes. First the usage of lynx instead of curl so no sed is needed to revert the spaces. Then the usages of egrep instead of grep -e to save a few characters and last the removal of the extra 0. Show Sample Output

just a leaner, smaller version. Love the original idea!

Uses Google's "OneBox" to look up the sunrise in any city by name. If no city is specified, it defaults to Seattle. For the sunset time, you change the search query to "sunset", like so, . sunset() { city=${1-Seattle}; w3m "google.com/search?q=sunset:$city" | sed -r '1,/^\s*1\./d; /^\s*2\./,$d; /^$/d' ;} . "OneBox" is Google's term for that box that appears before the organic search results that has useful information that Google thinks you might be looking for (mathematical calculations, weather, currency conversions, and such). I'm not actually using OneBox correctly, but that's because I'm not sure that there is a "correctly". I looked for a command line API, but couldn't find one, so I settled on parsing stdout from the fantastic w3m web browser. I use the sed script to show only the first hit by deleting everything from the beginning of the file until it sees " 1." and then deleting everything from " 2." to the end of the file. Ugly and fragile, yes, but it works fine. . BUG1: w3m represents the picture of the sun rising, "weather_sunset-40.gif" as "[weat]" which is slightly confusing and probably should be removed. . BUG2: The output is more easily readable by a human, which means it's less useful for scripting. Show Sample Output

Your version works fine except for someone who's interested in commands 'sudo' was prefixed to i.e. in your command, use of sudo appears as number of times sudo was used. Slight variation in my command peeks into what commands sudo was used for and counts the command (ignores 'sudo')

Normally the bash builtin command 'set' displays all vars and functions. This just shows the vars. Useful if you want to see different output then env or declare or export. Alias 'sete' shows sets variables alias sete='set|sed -n "/^`declare -F|sed -n "s/^declare -f \(.*\)/\1 ()/p;q"`/q;p"' Alias setf shows the functions. alias setf='set|sed -n "/^`declare -F|sed -n "s/^declare -f \(.*\)/\1 ()/p;q"`/,\$p"' Also see: http://www.commandlinefu.com/commands/view/6899/print-all-environment-variables-including-hidden-ones At the very least, some cool sed commands! From my .bash_profile http://www.askapache.com/linux-unix/bash_profile-functions-advanced-shell.html Show Sample Output

useful if you want to get the source code of a in memory function Show Sample Output

This command finds all of the functions defined in any shell script you specify including .bashrc

This also works on non-Linux machines. If you have GNU sed you can do it more elegantly: ifconfig | sed -n 's/^\s*inet \(addr:\)\?\([^\s]*\) .*/\2/;T;/^127\./d;p'

This will first remove any leading white space. If the line then starts with a comment character, it is cleared. If the result is an empty line, it's deleted. This allows for comment lines with leading white space.

Im' not interested in images, but that's how I would do it.

GoAccess is an open source real-time Apache web log analyzer and interactive viewer that runs in a terminal in *nix systems. It provides fast and valuable HTTP statistics for system administrators that require a visual server report on the fly. http://goaccess.prosoftcorp.com/ Show Sample Output

function for .bash_aliases that prints a line of the character of your choice in the color of your choice across the terminal. Default character is "=", default color is white.

scrot, curl, egrep, sed, xsel, libnotify-bin must be installed. P.S. Sorry for so long command Show Sample Output

Default interface is wlan0, change as appropriate. This simply strips all the noise from the iwlist output in order to make it easier to skim. It makes sense to make this a very simple shell function, replacing the iwlist call with something like: iwlist "${1:-wlan0}" # append pipe etc. This makes wlan0 the default if the function receives no arguments. Show Sample Output

"sort_csn" is a function to sort a comma separated list of numbers. Define the the function with this: sort_csn () { echo "${1}" | sed -e "s/,/\n/g"| sort -nu | awk '{printf("%s,",$0)} END {printf("\n")}' | sed -e "s/,$//"; } Use the function like this: sort_csn 443,22,80,8200,1533,21,1723,1352,25 21,22,25,80,443,1352,1533,1723,8200 One example where this is useful is when port scanning with nmap and getting a list of open ports in random order. If you use Nessus, you may need to create a scan policy for that set of specific ports and it is clearer to read with the port numbers in ascending order (left to right). Caveat: no spaces in the comma separated list (just number1,number2,number3,etc). A variation of this to sort a comma separated list of strings: sort_css () { echo "${1}" | sed -e "s/,/\n/g"| sort -u | awk '{printf("%s,",$0)} END {printf("\n")}' | sed -e "s/,$//"; } usage: sort_css apples,pears,grapes,melons,oranges apples,grapes,melons,oranges,pears Show Sample Output

Changed wget to curl and it doesn't create a file anymore. Show Sample Output

ur1.ca needs http:// on your URL