arithmetic in tcsh Post: 302200222

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I am a beginner and I have been searching the web all morning for this answer but can't find it anywhere. I know that prtint 1*2 will return 1*2 what if i actually want the problem to be calculated so i want print 1*2 to return 2 How is this done?

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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...

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Folks, I am wondering that i can use something like this in one line. For example, $((cat filename > wc -l) / 2) It doesn't work; how to get it work using command substitution? Moreover, is there any option for wc -l not to return filename after the line counts? wc -l filename would...

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Help with arithmetic operation

I am using egrep to extract numbers from a file and storing them as variables in a script. But I am not able to do any arithmetic operations on the variables using "expr" because it stores them as char and not integers. Here is my code and the error I get. Any help will be appreciated. #!/bin/sh...

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Hello Experts, In my shell I need to perform some simple subtraction on a value returned as a result of the "wc" command. The code: scanFromLine="100" ## This is returned as string as a result of some operation totalLines=`wc -l "${latestLogFile}" | awk '{print $1}'` ## eg: 200 ...

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Need help with date arithmetic please

Hello fellow forum members, I wrote below piece of code to calculate the date after a given date - date=$DATE_FINAL declare -a max_month=(0 31 28 31 30 31 30 31 31 30 31 30 31) eval $(echo $date|sed 's!$....$$..$$..$!year=\1;month=\2;day=\3!') (( year4=year%4 )) (( year100=year%100...

LEARN ABOUT OSX

nice

NICE(1) 						    BSD General Commands Manual 						   NICE(1)

NAME

     nice -- execute a utility with an altered scheduling priority

SYNOPSIS

     nice [-n increment] utility [argument ...]

DESCRIPTION

     nice runs utility at an altered scheduling priority.  If an increment is given, it is used; otherwise an increment of 10 is assumed.  The
     super-user can run utilities with priorities higher than normal by using a negative increment.  The priority can be adjusted over a range of
     -20 (the highest) to 20 (the lowest).

     Available options:

     -n increment
	     A positive or negative decimal integer used to modify the system scheduling priority of utility.

DIAGNOSTICS

     The nice utility shall exit with one of the following values:

     1-125   An error occurred in the nice utility.

     126     The utility was found but could not be invoked.

     127     The utility could not be found.

     Otherwise, the exit status of nice shall be that of utility.

COMPATIBILITY

     The historic -increment option has been deprecated but is still supported in this implementation.

SEE ALSO

     csh(1), getpriority(2), setpriority(2), renice(8)

STANDARDS

     The nice utility conforms to IEEE Std 1003.2-1992 (``POSIX.2'').

HISTORY

     A nice utility appeared in Version 6 AT&T UNIX.

BUGS

     nice is built into csh(1) with a slightly different syntax than described here.  The form 'nice +10' nices to positive nice, and 'nice -10'
     can be used by the super-user to give a process more of the processor.

BSD
								   June 6, 1993 							       BSD

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Arithmetic In UNIX

Discussion started by: tygun

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arithmetic in ksh

Discussion started by: amon

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Can I use wc -l with arithmetic expression?

Discussion started by: lalelle

4. Shell Programming and Scripting

Help with arithmetic operation

Discussion started by: emjayshaikh