Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: evaluate return status of a function
Top Forums Shell Programming and Scripting evaluate return status of a function Post 302212026 by Vi-Curious on Saturday 5th of July 2008 10:00:27 PM
Old 07-05-2008
Here's just a stupid snippet to check return values. Should print
TRUE
NOT TRUE
when executed. If you wanted to test for not true, you could use -ne instead of -eq.


Code:
#!/usr/bin/ksh

return_true () {
  return 0
}

return_not_true () {
  return 1
}

return_true
if [[ $? -eq 0 ]]
then
  echo "TRUE"
else
  echo "NOT TRUE"
fi

return_not_true
if [[ $? -eq 0 ]]
then
  echo "TRUE"
else
  echo "NOT TRUE"
fi

 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Return status...

Hello there! Here is my problem. I hope I can get some help about it. I need to know how can I get the return code of an application in the Unix shell script. The script is like below: PREVIOUS STATEMENT & VARIABLES sqlplus scott/tiger @$sqldir/$sqlscript NEXT STATEMENT (Like... (7 Replies)
Discussion started by: Shaz
7 Replies

2. Shell Programming and Scripting

return ftp status

Hello, I still have problems when trying to figure out if the status of an ftp was successful. I ftp to different types (nt, vax, unix, etc...) of machines. I am trying to write a universal script that will ftp a file and then check to see if the ftp was successful. I have tried the... (12 Replies)
Discussion started by: blt123
12 Replies

3. Shell Programming and Scripting

Return status of all previous runs

hi, I set the crontab to execute script A every 5 minutes from 9:00 am to 4:00 pm everyday, now at 12:00am I want to run another script if and only if all the previous runs of script A return OK, can anyone tell me how it could be done? thank you very very much! (4 Replies)
Discussion started by: mpang_
4 Replies

4. Shell Programming and Scripting

Verify scp return status

Hi all below is a snippet of my perl codesystem ("scp -pq $dest_file $path");How i can i trap the return status? ie if the scp fails how can i know ? (2 Replies)
Discussion started by: new2ss
2 Replies

5. HP-UX

Return of EXIT status ( $? )

I have the question: How return the exit code from then assign : VAR=$(command ) for ex. VAR=$(ls ....) VAREXIT=$? echo $VAREXIT VAREXIT is equal to 0 if the directory exist or not exist. WHI?? if i execute the command direct from line-command , the value of $? is different if... (1 Reply)
Discussion started by: ZINGARO
1 Replies

6. Shell Programming and Scripting

Return a value from called function to the calling function

I have two scripts. script1.sh looks -------------------------------- #!/bin/bash display() { echo "Welcome to Unix" } display ----------------------------- Script2.sh #!/bin/bash sh script1.sh //simply calling script1.sh ------------------------------ (1 Reply)
Discussion started by: mvictorvijayan
1 Replies

7. UNIX for Dummies Questions & Answers

opposite return status in c shell

there is something wrong with my system. when I do this: diff file1 file1 && echo 1 the output is 1. but diff file1 file2 >/dev/null && echo 1 output nothing while diff file1 file2 >/dev/null || echo 1 shows 1. the same with "grep" return status. they are both GNU utilities.... (5 Replies)
Discussion started by: phil518
5 Replies

8. Shell Programming and Scripting

Return Status

Hi can you explain me, what does variables $@ and $* return and how are they used, if can give me a sample example it could be helpful. Thanks in advance, Regards, Abhishek S. (1 Reply)
Discussion started by: abhisheksunkari
1 Replies

9. Shell Programming and Scripting

Return: can only `return' from a function or sourced script

Not sure where the problem is. I can run the script without any issue using the following command. . /opt/app/scripts/cdc_migration.sh But it fails with the below error when I try it this way /opt/app/scripts/cdc_migration.sh /opt/app/scripts/cdc_migration.sh: line 65: return: can only... (1 Reply)
Discussion started by: svajhala
1 Replies

10. Shell Programming and Scripting

Function - Make your function return an exit status

Hi All, Good Day, seeking for your assistance on how to not perform my 2nd, 3rd,4th etc.. function if my 1st function is in else condition. #Body function1() { if then echo "exist" else echo "not exist" } #if not exist in function1 my all other function will not proceed.... (4 Replies)
Discussion started by: meister29
4 Replies

LEARN ABOUT PHP

variant_imp

VARIANT_IMP(3)								 1							    VARIANT_IMP(3)

variant_imp - Performs a bitwise implication on two variants

SYNOPSIS

       mixed variant_imp (mixed  $left, mixed  $right)

DESCRIPTION

	Performs a bitwise implication operation.

PARAMETERS

	      o $left
		- The left operand.

	      o $right
		- The right operand.

       Note

	       As  with  all  the variant arithmetic functions, the parameters for this function can be either a PHP native type (integer, string,
	      floating point, boolean or NULL), or an instance of a COM, VARIANT or DOTNET class. PHP native types will be converted  to  variants
	      using  the  same	rules  as  found  in  the constructor for the "VARIANT" class. COM and DOTNET objects will have the value of their
	      default property taken and used as the variant value.

	       The variant arithmetic functions are wrappers around the similarly named functions in the COM  library;	for  more  information	on
	      these  functions, consult the MSDN library. The PHP functions are named slightly differently; for example variant_add(3) in PHP cor-
	      responds to VarAdd()  in the MSDN documentation.

RETURN VALUES

       Variant Implication Table

       +------------+--------------------+---+
       |If $left is |			 |   |
       |	    |			 |   |
       |	    |	 If $right is	 |   |
       |	    |			 |   |
       |	    | then the result is |   |
       |	    |			 |   |
       +------------+--------------------+---+
       |	    |			 |   |
       |   TRUE     |			 |   |
       |	    |			 |   |
       |	    |			 |   |
       |	    |	     TRUE	 |   |
       |	    |			 |   |
       |	    |			 |   |
       |	    |	     TRUE	 |   |
       |	    |			 |   |
       |	    |			 |   |
       |   TRUE     |			 |   |
       |	    |			 |   |
       |	    |			 |   |
       |	    |	    FALSE	 |   |
       |	    |			 |   |
       |	    |			 |   |
       |	    |	     TRUE	 |   |
       |	    |			 |   |
       |	    |			 |   |
       |   TRUE     |			 |   |
       |	    |			 |   |
       |	    |			 |   |
       |	    |	     NULL	 |   |
       |	    |			 |   |
       |	    |			 |   |
       |	    |	     TRUE	 |   |
       |	    |			 |   |
       |	    |			 |   |
       |   FALSE    |			 |   |
       |	    |			 |   |
       |	    |			 |   |
       |	    |	     TRUE	 |   |
       |	    |			 |   |
       |	    |			 |   |
       |	    |	     TRUE	 |   |
       |	    |			 |   |
       |	    |			 |   |
       |   FALSE    |			 |   |
       |	    |			 |   |
       |	    |			 |   |
       |	    |	    FALSE	 |   |
       |	    |			 |   |
       |	    |			 |   |
       |	    |	     TRUE	 |   |
       |	    |			 |   |
       |	    |			 |   |
       |   FALSE    |			 |   |
       |	    |			 |   |
       |	    |			 |   |
       |	    |	     NULL	 |   |
       |	    |			 |   |
       |	    |			 |   |
       |	    |	     TRUE	 |   |
       |	    |			 |   |
       |	    |			 |   |
       |   NULL     |			 |   |
       |	    |			 |   |
       |	    |			 |   |
       |	    |	     TRUE	 |   |
       |	    |			 |   |
       |	    |			 |   |
       |	    |	     TRUE	 |   |
       |	    |			 |   |
       |	    |			 |   |
       |   NULL     |			 |   |
       |	    |			 |   |
       |	    |			 |   |
       |	    |	    FALSE	 |   |
       |	    |			 |   |
       |	    |			 |   |
       |	    |	     NULL	 |   |
       |	    |			 |   |
       |	    |			 |   |
       |   NULL     |			 |   |
       |	    |			 |   |
       |	    |			 |   |
       |	    |	     NULL	 |   |
       |	    |			 |   |
       |	    |			 |   |
       |	    |	     NULL	 |   |
       |	    |			 |   |
       +------------+--------------------+---+
PHP Documentation Group 													    VARIANT_IMP(3)
All times are GMT -4. The time now is 07:16 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy