test expr VS [ expr ] Post: 302377106

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1. UNIX for Dummies Questions & Answers

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

2. UNIX for Dummies Questions & Answers

using the expr command

Hi friends how can i execute expr $va1 * $var2 provided i m not supposed to use '/' also the nglob variable is turned off.

3. Red Hat

how to use expr

i am new to shell programming, currently using redhat linux of version 2.4.20-8. i have problem in executing expr command in the following shell script $ x=5 $ x='expr $x + 1' $ echo $x the output is displaying always expr $x + 1 Pls guide me for the above query

4. Shell Programming and Scripting

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 \*...

5. UNIX for Dummies Questions & Answers

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...

6. UNIX for Dummies Questions & Answers

Performance of let and expr

i have been told that 'let' is faster than 'expr' in terms of performance. Is this correct? if yes, why is it so? i am not able to see any performance difference in small arithmetic operations. Thanks

7. Shell Programming and Scripting

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...

8. UNIX for Dummies Questions & Answers

Issues with 'expr'

Hi, I have a text file where i define all the inputs to my shell script: IP=1.2.3.4 PC=1234 In the shell script, i am trying to read the input variables from the above mentioned text file: #!/bin/bash #usage IP=expr cat /tmp/input.txt | grep IP| cut -d "=" -f2 PC=expr cat...

9. Shell Programming and Scripting

If + expr

10. Shell Programming and Scripting

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 DEBIAN

griffith

griffith(1)															       griffith(1)

NAME

       griffith - film collection manager

SYNOPSIS

       griffith

DESCRIPTION

       Griffith  is a film collection manager.	Adding items to the movie collection is as quick and easy as typing the film title and selecting a
       supported source. Griffith will then try to fetch all the related information from the Web.

OPTIONS

       -h --help
	      Show usage information.

       -D --debug
	      Run in debug mode.

       -C --clean
	      find and delete orphan files in posters directory.

       --check-dep
	      check dependencies - if all needed Python modules are installed, it prints nothting.

       --sqlecho
	      Prints all SQL queries to standard output.

       --home DIR
	      Set Griffith's home directory. Use this option if you want to change the default ~/.griffith

       Printing movie list:

       -c <expr> --cast=<expr>
	      cast field must contain <expr>

       -d <expr> --director=<expr>
	      director field must contain <expr>

       -o <expr> --original_title=<expr>
	      original title field must contain <expr>

       -t <expr> --title=<expr>
	      title field must contain <expr>

       -y <number> --year=<number>
	      movie must be released in year <number>

       -s <columns> --sort=<columns>
	      set sort columns to <columns>. Example: --sort=o_title,number,director

SEE ALSO

       Homepage: <http://www.griffith.cc/>

BUGS

       If you want to help or report any bugs founded please visit homepage <http://www.griffith.cc/> or <https://bugs.launchpad.net/griffith>

AUTHORS

       Griffith was written by Vasco Nunes and Piotr OA1/4arowski.  See the AUTHORS and THANKS files for a list of other contributors.

       Copyright (C) 2005-2008 Vasco Nunes <vasco.m.nunes@gmail.com>, Piotr OA1/4arowski <ozarow+griffith@gmail.com>,

       This man page was written by Piotr Ozarowski

								   Dec 20, 2006 						       griffith(1)

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

expr

Discussion started by: Nathe

2. UNIX for Dummies Questions & Answers

using the expr command

Discussion started by: ashishj

3. Red Hat

how to use expr

Discussion started by: saikumarm80

4. Shell Programming and Scripting

the expr \*

Discussion started by: jackel7777