11-08-2005
How to write an OR statement
Hi all,
I want to check if the first or the second or the third argument of call to a shell script is empty.
How do i do that in a short way. I watched some examples and i believe
if [ .$1 = . ] checks if an argument is NULL.
If so, how can i add the checks for argument 2 and 3 in the statement?
Thanks in advance
Auke Quist
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LEARN ABOUT LINUX
init-checkconf
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)