linux - within - shell script redirect output to file
Redirect all output to file (7)
All POSIX operating systems have 3 streams: stdin, stdout, and stderr. stdin is the input, which can accept the stdout or stderr. stdout is the primary output, which is redirected with
|. stderr is the error output, which is handled separately so that any exceptions do not get passed to a command or written to a file that it might break; normally, this is sent to a log of some kind, or dumped directly, even when the stdout is redirected. To redirect both to the same place, use:
command &> /some/file
EDIT: thanks to Zack for pointing out that the above solution is not portable--use instead:
*command* > file 2>&1
If you want to silence the error, do:
*command* 2> /dev/null
This question already has an answer here:
I know that in Linux, to redirect output from the screen to a file, I can either use the
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?
foo >> output.txt 2>&1
appends to the output.txt file, without replacing the content.
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.
It might be the the standard error. You can redirect it:
... > out.txt 2>&1
To get the output on the console AND in a file
file.txt for example.
make 2>&1 | tee file.txt
2>&1) specifies that
1 is not a file name but a file descriptor.
>> to append:
command >> file
You can use
exec command to redirect all stdout/stderr output of any commands later.
exec 2> your_file2 > your_file1 your other commands.....