Redirect all output to file [duplicate]

Question

This question already has an answer here:

• How can I redirect and append both stdout and stderr to a file with Bash? 6 answers

I know that in Linux, to redirect output from the screen to a file, I can either use the > or tee. However, I'm not sure why part of the output is still output to the screen and not written to the file.

Is there a way to redirect all output to file?

Answer 1

You can use exec command to redirect all stdout/stderr output of any commands later.

sample script:

exec 2> your_file2 > your_file1
your other commands.....

Answer 2

Command:

foo >> output.txt 2>&1

appends to the output.txt file, without replacing the content.

Answer 3

In Linux Mint, this command string routed executing script and errors to a single txt file. bash -x ./setup.sh > setup.txt 2>&1. Script name was setup.sh and output destination was setup.txt.

Answer 4

It might be the the standard error. You can redirect it:

... > out.txt 2>&1

Answer 5

Credits to osexp2003 and j.a. …

---

Instead of putting

&>> your_file.log

behind a line in

crontab -e

I use

#!/bin/bash
exec &>> your_file.log
…

at the beginning of a BASH script.

Advantage: You have the log definitions within your script. Good for Git etc.

Answer 6

That part is written to stderr, use 2> to redirect it. For example:

foo > stdout.txt 2> stderr.txt

or if you want in same file:

foo > allout.txt 2>&1

Note: this works in (ba)sh, check your shell for proper syntax