Commands using tr (342)

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Filter the output of a file continously using tail and grep
The OPs solution will work, however on some systems (bsd), grep will not filter the data, unless the --line-buffered option is enabled.

Suspend, background, and foreground a process
1. Start a process, such as 'top' command 2. # suspend process {ctrl-Z} 3. # background process bg 4. # list all backgrounded jobs jobs 5. # bring it back to foreground fg

Rename files in batch

Emulate tail using awk.
This awk codes emulates tail. For efficiency it uses a circular array, which stores only N number of records. Using awk gives the flexibility of modifying the output as needed, for example adding the record number (NR) at the output and much more.

Backup of a partition
Clone a partion with tar.

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

matrix in your term
-a : Asynchronous scroll -b : Bold characters on -x : X window mode, use if your xterm is using mtx.pcf

Insert the last argument of the previous command
for example if you did a: $ ls -la /bin/ls then $ ls !$ is equivalent to doing a $ ls /bin/ls

Go to directory or creat it and go to
For use in scripts this command is very usefull

Find usb device in realtime
Using this command you can track a moment when usb device was attached.


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