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Full Discussion: Check for Empty Command Argument
Top Forums UNIX for Dummies Questions & Answers Check for Empty Command Argument Post 302136771 by Nysif Steve on Wednesday 19th of September 2007 03:43:52 PM
Old 09-19-2007
Still the same error. Here is a larger portion of the code:

Code:
        ((startTime= `perl -e 'print time;'`))
	((currentTime= $startTime))
	((executeTime= $startTime))
	tempTime=`date +%H%M`


	# Check if the second command argument is exists.
	if[ "$#" <  2 ]
	then
		((endTime = $startTime + 28800))		# Add 8 hours = 28800 seconds

	# If The second command line argument isn't empty
	else
		((temp = `expr $2 - $tempTime`))
		if[ $temp < 0 ]					# If temp is negative convert it to positive
		then
			((tempHour = temp / 100))
			((tempHour = tempHour * -3600)) 	# Multiply hours by -3600 seconds per hour to make positive
			((tempMin = temp % 100))
			((tempMin = tempMin * -60))		# Multiple minutes by -60 seconds per minute to make positive
			

		else
			((tempHour = temp / 100))
			((tempHour =  tempHour * 3600)) 	# Multiply hours by 3600 seconds per hour
			((tempMin = temp % 100))
			((tempMin =  tempMin * 60))		# Multiple minutes by 60 seconds per minute
		fi

		((endTime = $endTime + $tempHour + $tempMin))
	fi

 

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LEARN ABOUT NETBSD

makedev.local

MAKEDEV.LOCAL(8)					    BSD System Manager's Manual 					  MAKEDEV.LOCAL(8)

NAME

     MAKEDEV.local -- create site-specific device special files

SYNOPSIS

     MAKEDEV.local [-fMsu] [-m mknod] [-p pax] [-t mtree] {all | site-specific-argument} [...]

DESCRIPTION

     MAKEDEV.local is used to create site-specific device special files.  Each argument may be the word all or a site-specific argument.  By
     default, there are no valid site-specific arguments, and the all argument has no effect; This may be changed by editing the script.

     The script is in /dev/MAKEDEV.local.  Devices are created in the current working directory; in normal use, MAKEDEV.local should be invoked
     with /dev as the current working directory.

     Supported options for MAKEDEV.local are the same as for MAKEDEV(8).

FILES

     /dev		 special device files directory
     /dev/MAKEDEV	 script that invokes MAKEDEV.local with the all argument.
     /dev/MAKEDEV.local  script described in this man page

SEE ALSO

     config(1), intro(4), MAKEDEV(8), mknod(8)

HISTORY

     The MAKEDEV.local command appeared in 4.2BSD.  Handling of the same command line options as MAKEDEV(8), and the use of MAKEDEV(8) as a func-
     tion library, was added in NetBSD 5.0.

NOTES

     The relationship between MAKEDEV.local and MAKEDEV(8) is complex:

     o	 If MAKEDEV(8) is invoked with the all or local argument, then it will invoke MAKEDEV.local as a child process, with options similar to
	 those that were originally passed to MAKEDEV(8), and with the all argument.

     o	 MAKEDEV.local uses shell functions defined in MAKEDEV(8).  This is done by loading MAKEDEV(8) using the shell ``.'' command, with the
	 MAKEDEV_AS_LIBRARY variable set (to inform MAKEDEV(8) that it should behave as a function library, not as an independent program).

BSD
								  August 6, 2011							       BSD
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