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
checksecurity
CHECKSECURITY(8) System Manager's Manual CHECKSECURITY(8)
NAME
checksecurity - Run a collection of simple system checks
SYNOPSIS
checksecurity
DESCRIPTION
The checksecurity command runs a small collection of simple system checks which are designed to catch a few common security issues. check-
security is run by cron in a daily basis.
CONFIGURATION
The checksecurity.conf file defines several configuration variables: MAILTO, CHECK_DISKFREE, CHECK_PASSWD and CHECK_SETUID LOGDIR. Each is
described below.
The checksecurity program works with a collection of plugins which are located in /usr/share/checksecurity and are configured individually
by their own configuration file.
CHECK_PASSWD If this is set to TRUE then the check-passwd script will be invoked. This script is designed to report upon system accounts
which have no passwords. CHECK_DISKFREE If this is set to TRUE then the check-diskfree script will be invoked and will allow an alert to
be sent if there is any mounted partition is running short on disk space. CHECK_SETUID If this is set to TRUE then the check-setuid script
will be invoked, this will compare the setuid binaries upon the system to those that existed previously and show the differences.
FILES
/etc/checksecurity.conf
checksecurity configuration file
SEE-ALSO
See also check-diskfree(8), check-setuid(8), and check-passwd(8)
Debian Linux 2 February 1997 CHECKSECURITY(8)