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Creating A Single Image Video With Audio via ffmpeg

Resize all JPEGs in a directory
This command requires the imagemagick libraries and will resize all files with the .jpg extension to a width of 1024 pixels and will keep the same proportions as the original image.

convert binary data to shellcode

Show IP Address in prompt --> PS1 var
when working with many machines in a computer lab need to know the IP addr is very large, this is a simplistic solution to make things easier

Converts all windows .URL shortcuts in a directory to linux (gnome) .desktop shortcuts

remove all spaces from all files in current folder

Real time satellite wheather wallpaper
Changes the wallpaper to the last satellite image. Tha url above shows latin america. Seek the best url for your location Now I have a usefull background image in my desktop I use it inside kalarm updating every 15 minutes. May be done with 'watch' instead It s an option to xplanet ( kde ) and xearth needs xli , curl

Convert seconds to [DD:][HH:]MM:SS
Converts any number of seconds into days, hours, minutes and seconds. sec2dhms() { declare -i SS="$1" D=$(( SS / 86400 )) H=$(( SS % 86400 / 3600 )) M=$(( SS % 3600 / 60 )) S=$(( SS % 60 )) [ "$D" -gt 0 ] && echo -n "${D}:" [ "$H" -gt 0 ] && printf "%02g:" "$H" printf "%02g:%02g\n" "$M" "$S" }

Copy specific files recursively using the same tree organization.
This command has been used to overwrite corrupted "entries" files of a corrupted subversion working copy. Note the --files-from input format.

Insert the last argument of the previous command
for example if you did a: $ ls -la /bin/ls then $ ls !$ is equivalent to doing a $ ls /bin/ls


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