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Linux Shell Scripting Essentials by Sinny Kumari

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Duplicating a stream using tee

In some cases, it's necessary to print an output on stdout and save an output in a file. In general, command output can either be printed or can be saved in a file. To solve it, the tee command is used. This command reads from the standard input and writes to both standard output and files. The syntax of tee will be as follows:

tee [OPTION] [FILE …]

The tee command copies the output to each FILE and also to stdout. The OPTIONS can be as follows:

Option

Description

-a, --append

This appends to the FILE instead of overwriting

-i, --ignore-interrupts

This ignores interrupt signals, if any

Writing an output to stdout and file: In general, to write an output to stdout and file, we will call the same command ...

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