IF condition doubt Post: 302173010

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1. Shell Programming and Scripting

Condition test ( [[ ]] ) doubt

Hi , I have a doubt on condition test ( ] ). Pls refer blow program. #!/bin/ksh TEMP= if ;then echo $TEMP else print 'invalid option' fi Above script's TEMP variable has no value so it gives "invalid option" as output. But I got an error before priting the string . Result : ...

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Difference between [condition] and [[condition]] and ((condition)) when used with if condition

Executed the following if conditions .. and got different results . only (( )) gave correct o/p with all scenarios . Can anybody please let me know what is the difference between and ] and ((condition)) when used with if condition. And why each condition gave different result. 1....

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redirect stdout echo command in condition A run in condition B

hi, I have some problems in my simple script about the redirect echo stdout command inside a condition. Why is the echo command inside the elif still execute in the else command Here are my simple script After check on the two diff output the echo stdout redirect is present in two diff...

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Hi experts, In one of our code we have used some command like this. name=${name##*/} Can someone please let me know what exactly it does? Thanks & Regards, Sathya V.

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If condition return 0 even when it fails to satisfy te condition

HI My doubt may be basic one but I need to get it clarified.. When i use "if" condition that checks for many AND, OR logical conditions like if ]; then return 0 fi Even the if condition fails it returns as zero.. Any clue.. But if i add else condition like if ]; ...

9. Shell Programming and Scripting

For loop/while condition - doubt

hi., As we know that using for-loop or while condition, we can only process one by one sequentially, but , lets say this example : 1. under the folder "logs" there are 1000 files 2. each file has one record or line 3. have to perform atleast 7 queries per 3 seconds ,for instance ...

LEARN ABOUT MOJAVE

let

let(1)                                                             User Commands                                                            let(1)

NAME

       let - shell built-in function to evaluate one or more arithmetic expressions

SYNOPSIS

   ksh
       let arg...

DESCRIPTION

   ksh
       Each arg is a separate "arithmetic expression" to be evaluated.

EXIT STATUS

       The following exit values are returned:

       0        The value of the last expression is non-zero.

       1        The value of the last expression is zero.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE         |      ATTRIBUTE VALUE        |
       +-----------------------------+-----------------------------+
       |Availability                 |SUNWcsu                      |
       +-----------------------------+-----------------------------+

SEE ALSO

       ksh(1), set(1), typeset(1), attributes(5)

SunOS 5.10                                                          15 Apr 1994                                                             let(1)

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Condition test ( [[ ]] ) doubt

Discussion started by: thambi

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redirect stdout echo command in condition A run in condition B

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