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Every 20 minutes test if host with IP 192.168.0.14 is 'dead' or not reachable.
The line should be put in your crontab file.
With counter format [001, 002, ..., 999] , nice with pictures or wallpapers collections.
no external commands, but can only do 0-99, not 1-100, so we adjust it later
Did some research and found the previous command wrong, we don't kill a zombie but its parent. Just made some modifcation to khashmeshab's command.
This command restarts mysql service.
head by default displays first ten lines of its output. Use 'head -nXX' to display the XX largest files
combines mkdir and cd
added quotes around $_, thanx to flatcap!
This command starts up the time synchronization service.
There is no need to 'zcat textfile.gz | less' with newer distros. This is useful for reading archived log files without having to extract, read, and zip when done.
show directory three
don't `man bash`
This is useful for command line 'recycle bins' and such like
This command generates a sequential login list. Good to be used as a source of new logins.
for passwordless login
Force empties the user trash
Using the "#" in shell is surprisingly useful.
Some of the uses I found:
a) As a visible copy buffer in shell history (caveat: do not use for passwords :-)
b) To build complex commands until ready then hit the HOME, DEL, ENTER keys to run it
c) Placing reference data into shell history (search for tags with CTRL-R TAGNAME)
d) Putting aside a "work in progress" command to focus on another task (HOME # ENTER)
Useful for removes a package and its depends, for example to remove the gnome desktop environment, also configuration files will be removed, you should be carefully and sure that you want to do this.