Commands by eduo (4)

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lists files and folders in a folder
lists files and folders in a folder with summary.

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" }

Creat a tar file for backup info
Use tar command for a backup info with a date of creation

Find usb device
I often use it to find recently added ou removed device, or using find in /dev, or anything similar. Just run the command, plug the device, and wait to see him and only him

Dumping Audio stream from flv (using mplayer)

Rename files in batch

Reboot as a different OS in Grub
This will reboot as the Grub 2 option.

Connect-back shell using Bash built-ins

Look for English words in /dev/urandom
* to get the English dictionary: wget http://www.mavi1.org/web_security/wordlists/webster-dictionary.txt

Random IPv4 address


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