Arithmetic operations in bash,ksh,sh Post: 302391374

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

arithmetic in ksh

Helloo.. I am trying one very simple thing I could not find anything on google.. I have 2 integer variable..and I need to do division...in ksh where $catch and $num are integer variable.. I tryed with this: printf "%0.2f" $final=$catch/$num but it does not work.. any help is...

2. Shell Programming and Scripting

problem in arithmetic operations

hello all, i am having a variable with a value of 0000010000 and if i add the variable with some no: suppose i=0000010000 n=`expr $i + 1` echo $n the output i am reciving is 10001 .it deletes all the zeros but i need result as 0000010001.. please help me... thanks in...

3. Shell Programming and Scripting

strange ksh arithmetic

Hello, I would like to understand this... I'm using ksh and doing (( z = y - 1 )) if y=34, then the result for z is 33, but if y=034 the result is z=27. Why?? Thanks

4. Shell Programming and Scripting

Need help is manipulating a file with some arithmetic operations using bash script

Friends, I have a file with contents like: interface Serial0/4/0/0/1/1/1/1:0 encapsulation mfr multilink group 101 Now I need to manipulate the file in such a way that to all the numbers less than 163, 63 gets added and to all numbers greater than 163, 63 gets deducted.(The numbers...

5. UNIX for Dummies Questions & Answers

arithmetic operations on 1 column of a file

Hi, I have a file with thousands of lines like this: Chr1 477515 . ACCCC ACCC 17.7 . INDEL;DP=17;AF1=1;CI95=0.5,1;DP4=0,1,0,3;MQ=32;PV4=1,0.036,1,1 Chr1 481987 . A AAAT 62 . INDEL;DP=11;AF1=1;CI95=0.5,1;DP4=0,0,1,3;MQ=41 I want to make a file with...

6. Shell Programming and Scripting

how to do arithmetic operations in one line command

I have a file like this product qty1 qty2 value cola 50 25 1 pepsi 100 75 2 muffin 25 30 0.5 would like to do the following operations with one line command 1) disply the line having "Qty1" greater than or equal to 50 2) display the line Qty1 - Qty2 ...

7. UNIX for Dummies Questions & Answers

Multiple arithmetic operations in a single line

hi, I want to do multiple arithmetic operations in a single line. I tried with the following line total_size=`expr ($total_size + $file_size) / 1024` this line is throwing me error. Im working on korn shell. Can i know how to do multiple arithmetic operations in a single line

8. Shell Programming and Scripting

Performing arithmetic operations on output of `wc -l`

Hi I want to perform arithmetic operations on output of `wc -l`. for example user046@sshell ~ $ ls -l total 0 where "total 0" will increase one line in wc -l filecount=`ls -l | wc -l` here $filecount will be 1 but is should be 0 how to get rid of it ?

9. Shell Programming and Scripting

Shell arithmetic : operations on decimal points

i am having a varialbe a , which is input to my file i want to multiply this input with value .43, and assign it to variable b. i tried it as below: #!/bin/sh a=$1 b=`expr $1\*0.43` echo b=$b error : expr: non-integer argument Please tell me , how to do this. Thanks

10. Shell Programming and Scripting

ksh Arithmetic syntax error while comparing decimal numbers

Hello, I am having a problem when i execute following script on RHEL 6.4. Same script works fine on another machine where I have same version of RHEL and KSH. Below is the rpm and RHEL version. ossvm12(0)> rpm -qa | grep ksh ksh-20100621-19.el6.x86_64 ossvm12(0)> cat...

LEARN ABOUT DEBIAN

surfraw-update-path

SURFRAW-UPDATE-PATH(1)					User Contributed Perl Documentation				    SURFRAW-UPDATE-PATH(1)

NAME

       surfraw-update-path - updates PATH in shell config files

SYNOPSIS

       surfraw-update-path [-add] [-remove] [-check] [-sys] [-all] [-help] [-shell=SHELL]

DESCRIPTION

       surfraw-update-path adds the surfraw elvi directory (/usr/lib/surfraw) to your PATH in your shell's config file.

       Currently it supports bash, sh, csh, tcsh, ash, dash, ksh, pdksh, zsh, rc, and es

       Don't forget to login again or source your login files for it to take effect.

OPTIONS

       -check
	   Checks to see if the surfraw config code is present.  This is the default.

       -add
	   Adds the surfraw config code.

       -remove
	   Removes the surfraw config code

       -sys
	   Updates the system-wide shell config instead of the user.  Must be done as root.

       -shell=SHELL
	   Selects the shell to configure. Defaults to the value of the $SHELL environment variable.

	   Currently supported shells are:

	   sh, ash, bash, dash, csh, tcsh, ksh, pdksh, zsh, rc, and es.

       -all
	   Attempts to configure the startup files for all known shells

       -help
	   Gives a usage message

RETURN VALUE

       -check returns 0 if the surfraw code is present in the file, 1 if it is not found, or 2 on error.

       All other options return 0 on success, or 2 on error.

ENVIRONMENT

       SHELL
	   Used to determine which shell to configure, if -shell is not given.

       HOME
	   Used to find users config files.

       ENV Used by posix-compliant shells to specify a startup rc file.

       ZDOTDIR
	   Used to find user config files for zsh. If not set, defaults to HOME.

SEE ALSO

       surfraw(1), sh(1), ash(1), bash(1), dash(1), csh(1), tcsh(1), ksh(1), pdksh(1), zsh(1), rc(1), es(1)

AUTHOR

       Ian Beckwith <ianb@erislabs.net>

perl v5.12.4							    2011-07-12						    SURFRAW-UPDATE-PATH(1)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

arithmetic in ksh

Discussion started by: amon

2. Shell Programming and Scripting

problem in arithmetic operations

Discussion started by: ithirak17

3. Shell Programming and Scripting

strange ksh arithmetic

Discussion started by: fbg

4. Shell Programming and Scripting

Need help is manipulating a file with some arithmetic operations using bash script

Discussion started by: shrijith1