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Reset hosed terminal,
stty sane resets the tty to basic usable function. The ^J is a newline -- sometimes CR/LF interpretation is broken so use the ^J explicitly.

Post a message to another users screen via SSH
Post a message on another users screen via SSH

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" }

Rename files in batch

Search for files in rpm repositorys. (Mandriva linux)
Look for an rpm that supplies a specific file that you don't yet have installed. extremely useful when you need something and don't know where it is.. or what its called. note: uses grep like syntax.

Move all files in subdirectories to current dir

Pronounce an English word using Dictionary.com
This one uses dictionary.com

Check SATA link speed.
Check SATA controller type. 6.0 Gbps - SATA III 3.0 Gbps - SATA II 1.5 Gbps - SATA I

Windows telnet
Check if TCP port is reacheable

count and number lines of output, useful for counting number of matches
Write each FILE to standard output, with line numbers added. With no FILE, or when FILE is -, read standard input.


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