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Full Discussion: Decimals in TCSH
Top Forums Shell Programming and Scripting Decimals in TCSH Post 302388981 by DFr0st on Friday 22nd of January 2010 04:52:34 AM
Old 01-22-2010
Decimals in TCSH

Hello,
I want to run a loop with non-integer values (which I know I can't) so I've created a loop of integers and divided it by 10. However, these values are always rounded down to 1 significant figure. How do I get the script to keep and use the decimal value?

My script is as follows
Code:
# START RI LOOP
set RI_min = 10
set RI_max = 30
set RI_inc = 1

set RI = $RI_min
while ($RI <= $RI_max)

@ PI=$RI / 10
echo "PI = " $PI "g cm^-3"
echo $RI

RI now runs from 10 to 30 but PI is only ever 1, 2 or 3. Any ideas?
Thanks

Last edited by Scott; 01-22-2010 at 06:11 AM.. Reason: Please use code tags
 

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CONTINUE(P)						     POSIX Programmer's Manual						       CONTINUE(P)

NAME
continue - continue for, while, or until loop SYNOPSIS
continue [n] DESCRIPTION
The continue utility shall return to the top of the smallest enclosing for, while, or until loop, or to the top of the nth enclosing loop, if n is specified. This involves repeating the condition list of a while or until loop or performing the next assignment of a for loop, and re-executing the loop if appropriate. The value of n is a decimal integer greater than or equal to 1. The default shall be equivalent to n=1. If n is greater than the number of enclosing loops, the outermost enclosing loop shall be used. OPTIONS
None. OPERANDS
See the DESCRIPTION. STDIN
Not used. INPUT FILES
None. ENVIRONMENT VARIABLES
None. ASYNCHRONOUS EVENTS
Default. STDOUT
Not used. STDERR
The standard error shall be used only for diagnostic messages. OUTPUT FILES
None. EXTENDED DESCRIPTION
None. EXIT STATUS
0 Successful completion. >0 The n value was not an unsigned decimal integer greater than or equal to 1. CONSEQUENCES OF ERRORS
Default. The following sections are informative. APPLICATION USAGE
None. EXAMPLES
for i in * do if test -d "$i" then continue fi echo ""$i"" is not a directory. done RATIONALE
None. FUTURE DIRECTIONS
None. SEE ALSO
Special Built-In Utilities COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technol- ogy -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group. In the event of any discrepancy between this version and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can be obtained online at http://www.opengroup.org/unix/online.html . IEEE
/The Open Group 2003 CONTINUE(P)
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