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Operating Systems Solaris How to check if a shell is already running ? Post 302597816 by fpmurphy on Sunday 12th of February 2012 10:11:40 AM
Old 02-12-2012
What exactly are you trying to achieve here? Ensure that you are not in a nested shell, i.e. that SHLVL is 1?
 

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init-checkconf(8)					      System Manager's Manual						 init-checkconf(8)

NAME
init-checkconf - manual page for init-checkconf SYNOPSIS
init-checkconf [OPTIONS] file init-checkconf [OPTIONS] -f file DESCRIPTION
Determine if specified Upstart init(8) job configuration file is valid. By default, two checks are performed: o Ensure Upstart can parse overall file successfully o Ensure all script sections are parseable by shell OPTIONS
-d , --debug Show some debug output. -f file , --file=file Specify job configuration file to check. -i path , --initctl-path=path Specify path to initctl(8) binary. -s , --noscript Do not check script sections. -x path , --upstart-path=path Specify path to init(8) binary. -h , --help Display usage statement. AUTHOR
Written by James Hunt <james.hunt@ubuntu.com> LIMITATIONS
o This program will not run as the root user. o It is not possible for a user to run multiple simultaneous instances of this program. REPORTING BUGS
Report bugs at <https://launchpad.net/upstart/+bugs> COPYRIGHT
Copyright (C) 2011 Canonical Ltd. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU- LAR PURPOSE. SEE ALSO
sh(1) init(5) init(8) Upstart 2011-04-06 init-checkconf(8)
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