How to append the output to a file?

LinuxShellCommand Line

Linux Problem Overview

How can I do something like command > file in a way that it appends to the file, instead of overwriting?

Linux Solutions

Solution 1 - Linux

Use >> to append:

command >> file

Solution 2 - Linux

Yeah.

command >> file to redirect just stdout of command.

command >> file 2>&1 to redirect stdout and stderr to the file (works in bash, zsh)

And if you need to use sudo, remember that just

sudo command >> /file/requiring/sudo/privileges does not work, as privilege elevation applies to command but not shell redirection part. However, simply using tee solves the problem:

command | sudo tee -a /file/requiring/sudo/privileges

Solution 3 - Linux

you can append the file with >> sign. It insert the contents at the last of the file which we are using.e.g if file let its name is myfile contains xyz then cat >> myfile abc ctrl d

after the above process the myfile contains xyzabc.

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Content TypeOriginal AuthorOriginal Content on Stackoverflow
QuestionThe StudentView Question on Stackoverflow
Solution 1 - LinuxMike LewisView Answer on Stackoverflow
Solution 2 - LinuxEdvardMView Answer on Stackoverflow
Solution 3 - Linuxuser3680358View Answer on Stackoverflow