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.

Download the last show on your TiVo DVR.

Replace $MAK with your MAK see https://www3.tivo.com/tivo-mma/showmakey.do

Replace $tivo with your TiVo's IP

No need to loop when we have `xargs`. The sed command filters out the first line of `show databases` output, which is always "Database".

"get Hong Kong weather infomation from HK Observatory

From Hong Kong Observatory wap site ;)"

other one showed alot of blank lines for me

From Hong Kong Observatory wap site ;)

Uses curl to download page of membership of US Congress. Use sed to strip HTML then perl to print a line starting with two tabs (a line with a representative)

You're behind on your TV catch-up, but how far behind? This command tries to open mplayer against all files in the current dir. If it's a video file it will contain ID_LENGTH, which is summed and output in hours, minutes and seconds.

Someone better at awk could probably reduce this down a lot.

List all text files in the current directory.

Just create a function in your .bashrc like this

shorturl() {

curl -s -d URL="$1" http://is.gd/create.php | sed '/Your new shortened/!d;s/.*value="\([^"]*\)".*/\1/'

}

Assuming that $script contains the filename of a script you'd like to post as part of a comment on this site, this will prefix each line with '$' and pipe it into the X selection. From there just put the cursor in the right place in the comments box and middle-click.

Should work pretty much anywhere with xclip installed. On debian-ish systems this is installed as part of the package "xclip".

search argument in PATH

accept grep expressions

without args, list all binaries found in PATH

With this simple sed command we can easily comment and entire file.

Connect to a machine running ssh using mac address by using the "arp" command

Checks the Gmail ATOM feed for your account, parses it and outputs a list of unread messages.

For some reason sed gets stuck on OS X, so here's a Perl version for the Mac:

If you want to see the name of the last person, who added a message to the conversation, change the greediness of the operators like this:

From there, just pkg install the package you need.

If you still connect to your wireless access point manually and need to use wpa_supplicant, the above fu will grep all of the known SSID from your wpa_supplicant.conf file, present it in a Zenity list and return the SSID name you choose. I've wrapped this command in to a bash script that then up's the interface, associates and autenticates. Saves me from using NetworkManager ;)

With this one liner you can easily output a standard help message using the following convention:

Usage: is the start marker

Stop at the last #

Manages everything through one sed script instead of pipes of greps and awks. Quoting of shell variables is generally easier within a sed script.