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Top Forums Shell Programming and Scripting What is the right way to redirect script output use ">" or ">>" ? Post 302895970 by kchinnam on Thursday 3rd of April 2014 02:23:38 PM
Old 04-03-2014
What is the right way to redirect script output use ">" or ">>" ?

Which one of the following are more accurate and why?
Code:
nohup myScript.sh 1>nohup_$(date +%Y%m%d%H%M%S).out 2>&1 &
nohup myScript.sh 1>>nohup_$(date +%Y%m%d%H%M%S).out 2>&1 &
nohup myScript.sh >nohup_$(date +%Y%m%d%H%M%S).out 2>&1 &
nohup myScript.sh  >>nohup_$(date +%Y%m%d%H%M%S).out 2>&1 &

I would go with 2nd line, but I am not sure why others are not better!!
 

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NOHUP(1)                                                           User Commands                                                          NOHUP(1)

NAME
nohup - run a command immune to hangups, with output to a non-tty SYNOPSIS
nohup COMMAND [ARG]... nohup OPTION DESCRIPTION
Run COMMAND, ignoring hangup signals. --help display this help and exit --version output version information and exit If standard input is a terminal, redirect it from an unreadable file. If standard output is a terminal, append output to 'nohup.out' if possible, '$HOME/nohup.out' otherwise. If standard error is a terminal, redirect it to standard output. To save output to FILE, use 'nohup COMMAND > FILE'. NOTE: your shell may have its own version of nohup, which usually supersedes the version described here. Please refer to your shell's doc- umentation for details about the options it supports. AUTHOR
Written by Jim Meyering. REPORTING BUGS
GNU coreutils online help: <http://www.gnu.org/software/coreutils/> Report nohup translation bugs to <http://translationproject.org/team/> COPYRIGHT
Copyright (C) 2017 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. SEE ALSO
Full documentation at: <http://www.gnu.org/software/coreutils/nohup> or available locally via: info '(coreutils) nohup invocation' GNU coreutils 8.28 January 2018 NOHUP(1)
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