In Linux, you can make one command’s output the standard input of another command. This process is called piping and it is done using the pipe symbol (|). Piping lets you have one command work on some data and then have the next command deal with the results.
Here is an example. We can use the ps -A command to list all process on the system:
We can then pipe the output of the ps command to the sort command. This results in the following sorted output:
Here is an example. We can use the ps -A command to list all process on the system:
We can then pipe the output of the ps command to the sort command. This results in the following sorted output:
NOTE – we have used the -k 4 option to sort by the executable name (the fourth field).We can pipe as many programs together as we like. For example, we could pipe the output of the ps -A | sort -k 4 command to the tail command to display only the last ten lines of the output:
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