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Top Forums Shell Programming and Scripting How to get a variables from two different txt files and need to run a command using that values? Post 302973395 by Corona688 on Tuesday 17th of May 2016 11:13:05 AM
Old 05-17-2016
Do they really need to be in 3 different files? How about one?

The command may return a status which allows you to detect whether it failed without grubbing its text output. || is a short-form notation, command1 || command2 means "if command1 fails, run command2".

Also, you don't need to reopen your logfile 10,000 times for 10,000 different nodes, you can redirect the output of the entire loop once to catch it all.

Code:
while read NODE PORT UID PWD
do
        cfsend n:"${NODE}" port:${PORT} uid:${UID}  pwd:${PWD} pn:CHCKDIR ud:5563 trtype:c rcmd:"pwd" || echo "PS is down on $NODE"
done < table > output.log 2>/dev/null

 

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PWD(1)                                                             User Commands                                                            PWD(1)

NAME
pwd - print name of current/working directory SYNOPSIS
pwd [OPTION]... DESCRIPTION
Print the full filename of the current working directory. -L, --logical use PWD from environment, even if it contains symlinks -P, --physical avoid all symlinks --help display this help and exit --version output version information and exit If no option is specified, -P is assumed. NOTE: your shell may have its own version of pwd, which usually supersedes the version described here. Please refer to your shell's docu- mentation 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 pwd 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
getcwd(3) Full documentation at: <http://www.gnu.org/software/coreutils/pwd> or available locally via: info '(coreutils) pwd invocation' GNU coreutils 8.28 January 2018 PWD(1)
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