Two methods to redirect output for “set -x”

I found that the standard direct cannot redirect the output of the “set -x”, following is two methods to redirect output for “set -x” by google and my co-worker:

1: ./test.sh > test.log 2>&1

2: test.sh 2>&1 | tee -a test.log

About “tee” from linux man page:

Name
tee – read from standard input and write to standard output and files
Synopsis
tee [OPTION]… [FILE]…
Description

Copy standard input to each FILE, and also to standard output.
-a, –append
append to the given FILEs, do not overwrite
-i, –ignore-interrupts
ignore interrupt signals
–help
display this help and exit
–version
output version information and exit
If a FILE is -, copy again to standard output.
Author
Written by Mike Parker, Richard M. Stallman, and David MacKenzie.
Reporting Bugs
Report bugs to .
Copyright
Copyright � 2006 Free Software Foundation, Inc.This is free software. You may redistribute copies of it under the terms of the GNU General Public License . There is NO WARRANTY, to the extent permitted by law.
See Also
The full documentation for tee is maintained as a Texinfo manual. If the info and tee programs are properly installed at your site, the command
info tee
should give you access to the complete manual.
Referenced By
auto-build(1), pee(1), tee(2), tpipe(1)

Posted by 52nlp

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