how to use expr Post: 302148253

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expr

Hello! I want to evaluate some mathematical expressions in a script and I try to use 'expr' command. Unfortunatally, when I have, for example, expr 8.2 + 6 the result is 'expr: non-numeric argument' Why ? I work on SunOs 5.7. Thanks in advance Nathe

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Hi, in my ksh script expr 22 / 10 results as 2 but the actual result expected in 2.2. how do i get that result. Please help Thanks,

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sum=0; cat op_api2 |while read word1 word2; do echo $word2 sum=`expr $word2 + $sum`; done echo $sum op_api2 ( file has this data ) ---------------------------- UsageSummary 1034 UsageSummary 1675 UnbilledUsage 175 UnbilledUsage 177 UnbilledUsage 177 UnbilledUsage 194 I want the...

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test expr VS [ expr ]

What is the difference between test expr VS . For example : if test 5 -eq 6 echo "Wrong" and if echo "Wrong" bot will give the same output as Wrong. Now, what is the difference between these two? though they are producing the same result why we need two? Any answer will be...

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expr command help

I'm trying to check if a variable'd string is only one character and use that in an if statement the only way I could find is: $expr "${var}" : . # expr STRING : regrep where the "." is the grep wildcard for any single character. Whats wrong with my code here and is there a...

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the expr \*

$ cat > mtable #!/bin/sh # #Script to test for loop # # if then echo "Error - Number missing form command line argument" echo "Syntax : $0 number" echo "Use to print multiplication table for given number" exit 1 fi n=$1 for i in 1 2 3 4 5 6 7 8 9 10 do echo "$n * $i = `expr $i \*...

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expr ?!

Hey there i want to subtract the content from $b from $a. Each variable has got 18 values (normal numbers from 0 - 99). How can i subtract them? I know i have to use the expr command, this is what i have till now: a=`cat Tabelle.dat | awk {'print $4'} | awk -F: {'print $1'}` b=`cat...

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Error with expr - "expr: syntax error"

Hi All, I'm writing a shell script in KSH, where I want to store the filename, total record count and actual record count of all the source files. The source files reside in 4 different sub-folders under the same root folder. Below is code: #!/usr/bin/ksh...

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If + expr

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Nn$( expr $n + 1)

HI there I am trying to understand Shell scripting to create my own, I am attempting a few examples can anyone tell me what this means?n=$( expr $n + 1)Tried looking on the internet, but just cannot find its anywhere :( .Help please

LEARN ABOUT PHP

hw_getobject

HW_GETOBJECT(3) 							 1							   HW_GETOBJECT(3)

hw_GetObject - Object record

SYNOPSIS

       mixed hw_getobject (int	$connection, mixed  $objectID, [string	$query])

DESCRIPTION

	Gets an object record. If the second parameter is an array of integer the function will

PARAMETERS

	      o $connection
		- The connection identifier.

	      o $objectID
		- The object identifier, or an array of identifiers.

	      o $query
		- The query string has the following syntax:

	      <expr> ::= "(" <expr> ")" |
			 "!" &lt;expr> |	  /* NOT */
			 <expr> "||" <expr> |  /* OR */
			 <expr> "&amp;&amp;" <expr> |  /* AND */
			 <attribute> <operator> <value>

	      <attribute> ::= /* any attribute name (Title, Author, DocumentType ...) */

	      <operator> ::= "=" |    /* equal */
			     "<" |    /* less than (string compare) */
			     ">" |    /* greater than (string compare) */
			     "~"      /* regular expression matching */

RETURN VALUES

	Returns the object record for the given object ID if the second parameter is an integer.

	If  the  second parameter is an array of integer the function will return an array of object records. In such a case the last parameter is
       also evaluated which is a query string.

SEE ALSO

       hw_getandlock(3), hw_getobjectbyquery(3).

PHP Documentation Group 													   HW_GETOBJECT(3)

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

expr

Discussion started by: Nathe

2. Shell Programming and Scripting

expr problem

Discussion started by: kotasateesh

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getting error with expr

Discussion started by: bishweshwar

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test expr VS [ expr ]

Discussion started by: ashok.g