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Extract title from HTML files
not the best, uses 4 pipes!

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" }

Check your unread Gmail from the command line
notice what happens when there is more than one unread message in a thread... also people please dont hardcode the password when you use curl. Leave it out and curl will ask you when it runs. Please...?

Find usb device in realtime
Using this command you can track a moment when usb device was attached.

old man's advice

Change every instance of OLD to NEW in file FILE
Very quick way to change a word in a file. I use it all the time to change variable names in my PHP scripts (sed -i 's/$oldvar/$newvar/g' index.php)

Truncate 0.3 sec from an audio file using sox
Using this command one can cut a piece from the end of an audio file.

command line to optimize all table from a mysql database

Download Englishword pronounciation as mp3 file

List the files any process is using
List the files a process is using.


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