Per default, linux/unix shells are configured with a width of 80 characters.

If you like to edit a phrase or string on a line with more than 80 characters it might take long to go there (for example a line with 1000 characters and you like to edit the 98th word which is character 598-603).

Maybe you might wish to use 78 characters, because if you forward the text via mail and the text will be quoted (2 extra characters at the beginning to the line "> "), you use 80 characters, otherwise 82, which are lame.

Notifyme is a program that listen in background for users login, and report on login and logout. Users can be specified from a list or in a ~/notify.rc file. -C options force to display messages on the center of the screen.See man notifyme for more details. Part of notifyme package, tested on Debian.

Ater person A starts his screen-session with `screen`, person B can attach to the srceen of person A with `screen -x`. Good to know, if you need or give support from/to others.

From man tiger : Tiger is a package consisting of Bourne Shell scripts, C code and data files which is used for checking for security problems on a UNIX system. It scans system configuration files, file systems, and user configuration files for possible security problems and reports them.

mytop is a top like monitor for displaying Mysql server statistic and performance. Part of mytop package ,tested on Debian.

Displays time of last system boot

Report memory and swap space utilization statistics e.g. memory free/used, swap free/used

Send signal 0 to the process. The return status ($?) can be used to determine if the process is running. 0 if it is, non-zero otherwise.

Where foodir is the directory you want to zip up.

You only have to fill in your administrative account and password, and the router FQDN!

I recommand to execute this command not over the internet, because there is no encryption (the username and password will be transmitted in plaintext!)

VARNAMES='ID FORENAME LASTNAME ADDRESS CITY PHONE MOBILE MAIL ...'

cat customer.csv | while read LINE ; do

COUNT=1

for VAR in $VARNAMES ; do

eval "${VAR}=`echo $LINE | /usr/bin/awk {'print $'$COUNT''}`"

let COUNT=COUNT+1

done

done

Maybe you have a CSV-File with addresses, where you have to process each contact (one per line, write each value to own variable). Of course you can define every variable, but this way is more simple and faster (to write).

VARNAMES includes the variable names. Pay attention: the number of names in VARNAMES have to be the same than in the CSV-file the fields. If the CSV is not seperated with ";", you can set the seperator after the awk-binary with -F"_" for example.

Deletes empty directories and prints an error if directory is not empty.

Returns tomorrow's date in the format yyyyMMdd

Returns yesterday's date in the format yyyyMMdd

Assumes you have ffmpeg and oggenc.

Similar to other scripts here, but this time outputting to Ogg Vorbis.

I added the variable assignment for a nice output name.

This is part of an interactive bash script I have with a few little multimedia tasks in it.

http://www.dward.us/software/VSAK.sh

The uuencode utility will encode your file so that it can be sent as an attachment to an email. It is part of the sharutils package in RHEL/CentOS/Fedora.

Note, this works because smtp is running

I used an flv in my example, but it'll work on any file ffmpeg supports. It says it wants an output file, but it tells what you want to know without one.

This converts all m4a files in a dir to flv. You can just swap the m4a bit to anything else ffmpeg supports though, and it'll work.

This is handy for making screenshots of all your videos for referring to in your flv player.