Commands by gabrielwelch190 (0)

  • bash: commands not found

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sleep until X o'clock
pauses exactly long enough to wake at the top of the hour

How to run a command on a list of remote servers read from a file
The important thing to note in this command, is the "-n" flag.

Equivalent to ifconfig -a in HPUX
not shown ifconfig error

Equivalent to ifconfig -a in HPUX
Command is properly working on HP-UX 11.31

connects to a serial console
cu (call UNIX) establishes a full-duplex connection to another machine (*BSD) using a serial console. It becames more useful than screen if you have to send a BREAK signal. using cu just type "~#". $man cu http://www.openbsd.org/cgi-bin/man.cgi?query=cu&apropos=0&sektion=0&manpath=OpenBSD+Current&arch=i386&format=html

Toggle between directories
switch to previous directory or toggle

create an uncompressed tar file of each child directory of the current working directory
First, use find to find directories exactly one level below current directory, then create a tar file using the directory as the basename.

Dump a web page
Useful to browse dangerous web sites.

Function to check whether a regular file ends with a newline
tail -c 1 "$1" returns the last byte in the file. Command substitution deletes any trailing newlines, so if the file ended in a newline $(tail -c 1 "$1") is now empty, and the -z test succeeds. However, $a will also be empty for an empty file, so we add -s "$1" to check that the file has a size greater than zero. Finally, -f "$1" checks that the file is a regular file -- not a directory or a socket, etc.

list block devices
Shows all block devices in a tree with descruptions of what they are.


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