Commands by AndrewM (2)

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Load average + API google chart
limite = threshold

check open ports without netstat or lsof

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.

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

Find the package that installed a command

Rename files in batch

Execute matlab sentences from command line
Execute matlab sentences in shell script: for var in `seq 0 0.2 1` ; do echo "my_function($var);" | matlab -nodisplay done

Find removed files still in use via /proc
Oracle DBA remove some logfiles which are still open by the database and he is complaining the space has not been reclaimed? Use the above command to find out what PID needs to be stopped. Or alternatively recover the file via: $ cp /proc/pid/fd/filehandle /new/file.txt

Recursive chmod all files and directories within the current directory

Backup with versioning
Apart from an exact copy of your recent contents, also keep all earlier versions of files and folders that were modified or deleted. Inspired by the excellent EVACopy http://evacopy.sourceforge.net


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