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Top Forums Shell Programming and Scripting How to run simple single command on multiple Linux servers? Post 303006400 by MadeInGermany on Wednesday 1st of November 2017 05:39:09 PM
Old 11-01-2017
What's wrong? Do you get an error message?
I have omitted some stuff where I don't see a sense, and have prepended a hostname.
Code:
tmpdir=${TMPDIR:-/tmp}/pssh.$$
mkdir -p $tmpdir
echo "Output is in $tmpdir"
while read userhost
do
    (
    printf "%-29s " "$userhost"
    ssh -nx -o BatchMode=yes "$userhost" 'lsb_release -sd'
    ) </dev/null >"$tmpdir/$userhost" 2>&1 &
done < servers.txt
# wait until all bg jobs are done
wait

 

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MKTEMP(1)							   User Commands							 MKTEMP(1)

NAME
mktemp - create a temporary file or directory SYNOPSIS
mktemp [OPTION]... [TEMPLATE] DESCRIPTION
Create a temporary file or directory, safely, and print its name. TEMPLATE must contain at least 3 consecutive 'X's in last component. If TEMPLATE is not specified, use tmp.XXXXXXXXXX, and --tmpdir is implied. Files are created u+rw, and directories u+rwx, minus umask restrictions. -d, --directory create a directory, not a file -u, --dry-run do not create anything; merely print a name (unsafe) -q, --quiet suppress diagnostics about file/dir-creation failure --suffix=SUFF append SUFF to TEMPLATE; SUFF must not contain a slash. This option is implied if TEMPLATE does not end in X -p DIR, --tmpdir[=DIR] interpret TEMPLATE relative to DIR; if DIR is not specified, use $TMPDIR if set, else /tmp. With this option, TEMPLATE must not be an absolute name; unlike with -t, TEMPLATE may contain slashes, but mktemp creates only the final component -t interpret TEMPLATE as a single file name component, relative to a directory: $TMPDIR, if set; else the directory specified via -p; else /tmp [deprecated] --help display this help and exit --version output version information and exit AUTHOR
Written by Jim Meyering and Eric Blake. REPORTING BUGS
GNU coreutils online help: <http://www.gnu.org/software/coreutils/> Report mktemp 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
mkstemp(3), mkdtemp(3), mktemp(3) Full documentation at: <http://www.gnu.org/software/coreutils/mktemp> or available locally via: info '(coreutils) mktemp invocation' GNU coreutils 8.28 January 2018 MKTEMP(1)
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