Check These Out
Google just released a new commend line tool offering all sorts of new services from the commend line. One of them is uploading a youtube video but there are plenty more google services to interact with.
Download it here: http://code.google.com/p/googlecl/
Manual: http://code.google.com/p/googlecl/wiki/Manual
This specific command courtesy of lifehacker:http://lifehacker.com/5568817/
Though all can be found in manual page linked above.
Create a exact mirror of the local folder "/root/files", on remote server 'remote_server' using SSH command (listening on port 22)
(all files & folders on destination server/folder will be deleted)
The command copies a file from remote SSH host on port 8322 with bandwidth limit 100KB/sec;
--progress shows a progress bar
--partial turns partial download on; thus, you can resume the process if something goes wrong
--bwlimit limits bandwidth by specified KB/sec
--ipv4 selects IPv4 as preferred
I find it useful to create the following alias:
alias myscp='rsync --progress --partial --rsh="ssh -p 8322" --bwlimit=100 --ipv4'
in ~/.bash_aliases, ~/.bash_profile, ~/.bash_login or ~/.bashrc where appropriate.
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"
}
This shell function takes a single argument, which is used as the base name of the .wav, .timing and .session files created. To create a screencast:
$ screencast test
type and talk ...
then type 'exit' or to exit the screencast.
test.wav will contain the audio from your screencast.
test.session will contain text and control characters needed to paint the screen
test.timing will contain timing information needed to synch individual keystrokes in test.session with the audio.
to play back:
$ aplay test.wav & scriptreplay test.{timing,session}
NOTE: because the shell function uses the variable "$!", and bash likes to expand '!' during history expansion, you will need to turn off bash's history before you enter the shell function.
This can be achieved using the command
$set +H
You can get what functions at which addresses are inside a dynamic link library by this tool.
poorman's ifstat using just sh and awk. You must change "eth0" with your interface's name.
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"
Useful for backing up old files, custom logs, etc. via a cronjob.
