can anyone explain this?

honeym210 · #1 (**permalink**) 08-07-2008

this is the mksys b script....
can anyone explain .. what # and 1 in if condition

this is the first line of the script... it is not from middle of the script....

Code:

if [ "$#" -ne 1 ]
then
   echo "Not enough parameters, need a client name for mksysb"
   Usage="Usage: $0 <client name>"
   UsageExample="Usage Example: $0 devdbms1"
   echo $Usage
   echo $UsageExample
   var_mksysb_exec_return_code=99
   echo "Return Code - $var_mksysb_exec_return_code"
   exit $var_mksysb_exec_return_code
fi

jim mcnamara · #2 (**permalink**) 08-07-2008

$# is the number of parameters given to the script - [ ] tests whether the number of parameters equals 1 - if not one then display the usage example.

$# = parameter count
-ne = not equal for integers

redhead · #3 (**permalink**) 08-07-2008

the if condition say:

If the argument-count ('$#') given to the program dosnt equal (-ne) one (1)
- Display help on how to use the program.

More UNIX and Linux Forum Topics You Might Find Helpful
Thread	Thread Starter	Forum	Replies	Last Post
please explain the below	mail2sant	Shell Programming and Scripting	1	04-04-2008 09:04 AM
explain plz	avikal	Shell Programming and Scripting	2	04-03-2008 12:11 PM
Please can any one explain this ${0##/}	gadege	Shell Programming and Scripting	2	04-01-2008 04:26 PM
Explain awk	hitmansilentass	Shell Programming and Scripting	4	09-27-2006 03:14 PM
can anyone explain this?	djkane	Shell Programming and Scripting	2	02-28-2006 11:41 AM

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes	Rate This Thread
Switch to Linear Mode Hybrid Mode Switch to Threaded Mode	Rate This Thread:


	Powered by