Commands by forcefsck (8)

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Skype conversation logs to IRC-format logs

Convert a flv video file to avi using mencoder

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" }

Remount root in read-write mode.
Saved my day, when my harddrive got stuck in read-only mode.

Find the package that installed a command

Remove a line in a text file. Useful to fix "ssh host key change" warnings

Backup files older than 1 day on /home/dir, gzip them, moving old file to a dated file.
Useful for backing up old files, custom logs, etc. via a cronjob.

Install pip with Proxy
Installs pip packages defining a proxy

Rename files in batch

Perl Command Line Interpreter
Can also just use the debug mode like this.


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