remove files with access time older than a given date.

If you want to remove files with a given modification time replace %A@ with %T@. Use %C@ for the modification time.

The time is expressed in epoc but is easy to use any other ordered format.

Uses the dumb terminal option in gnuplot to plot a graph of frequencies. In this case, we are looking at a frequency analysis of words in all of the .c files.

I know this has been beaten to death but finding video files using mime types and printing the "hours of video" for each directory is (IMHO) easier to parse than just a single total. Output is in minutes.

Among the other niceties is that it omits printing of non-video files/folders

PS: Barely managed to fit it within the 255 character limit :D

midentify.sh is part of mplayer, but you might have to locate it on your box.

I have a custmer's Geovision DVR installed on a closed proxi (only logme-in reaches it).

I have to check for reliability but logmein hangs and is too slow a process

I made the Geovision software send e-mail every minute to the www.spam.la site.

All this script does is to retrieve the e-mail header from spam.la ( no login!), filtering sender, stopping at the first occurrence of the word "secs" ( the age of the last e-mail ).

The result is the age of the sender's last e-mail, tiny published on top of my screen once a minute.

I can refresh www.spam.la via web browser, but have other things to do.

I use it inside Kalarm ( kde task schedule ) set to 1 minute repeat.

It can be done without kalarm, using Watch outside the script.

Try it out now using my account = geo1 ( change sender by geo1 in this script)

Needs curl , osd-bin

This function uploads images to http://omploader.org and then prints out the links to the file.

Some coloring can also be added to the command with:

Simple MAC adrress, thanks to ifconfig.

...or for a particular interface...

I much prefer using /sbin/ip over /sbin/ifconfig for most everything. I find the interface and output to be much more consistent and it has many abilities that ifconfig, route, etc. do not. To get the mac address for only one interface, add 'show dev [interface]' to the 'ip link' part of the command: ip link show dev eth0 | grep 'link/ether' | awk '{print $2}' . Also, both this command and the ifconfig one do not require root access to run, so the sudo is not necessary.

Adds up the total memory used by all Stainless processes: 1 Stainless, 1 StainlessManager and 1 StainlessClient per tab open.

Sometimes, you don't really care about all the other information that ifconfig spits at you (however useful it may otherwise be). You just want an IP. This strips out all the crap and gives you exactly what you want.

Useful when you need to write e.g. an INSERT for a table with a large number of columns. This command will retrieve the column names and comma-separate them ready for INSERT INTO(...), removing the last comma.

The original version gives an error, here is the correct output

Calculating series with awk only, no need for seq: add numbers from 1 to 100

Variations:

1+3+...+(2n-1) = n^2

1/2 + 1/4 + ... = 1

simple function , floating point number is supported.

Handled all within awk. Takes the value from $PWD and constructs directory structures and runs commands against them. The gsub() call is not necessary, but added for better visibility.

If a variable DIR is given on the awk command-line, then that directory is used instead:

Just one character longer than the sed version ('FNR==5' versus -n 5p). On my system, without using "exit" or "q", the awk version is over four times faster on a ~900K file using the following timing comparison:

Adding "exit" or "q" made the difference between awk and sed negligible and produced a four-fold improvement over the awk timing without the "exit".

For long files, an exit can speed things up:

I don't know if it's better but works fine :)