Shell Programming and Scripting

set lattest = ` echo $latmin "%2" | bc -l `
echo $lattest

if ( $lattest == 0 ) then
    echo "min is already even"
else if ( $lattest =! 0 ) then    
    set latmin = ` echo $latmin "+1" | bc -l `
endif

#!/usr/bin/env tcsh

# @(#) s1	Demonstrate remainder operator in tcsh.

# Infrastructure details, environment, commands for forum posts. 
# Uncomment setenv command to run script as external user.
# setenv PATH "/usr/local/bin:/usr/bin:/bin"
echo
setenv LC_ALL C ; setenv LANG C
echo "Environment: LC_ALL = $LC_ALL, LANG = $LANG"
echo "(Versions displayed with local utility version)"
sh -c "version >/dev/null 2>&1 && version '=o' tcsh"
echo

@ a = 1 + 1
echo " a is $a"

echo
@ even = 16 % 2
echo " even is $even"

echo
@ odd = 17 % 2
echo " odd is $odd"

echo
set n = 22
if ( $n % 2 == 0 ) then
  echo " $n is even"
else
  echo " $n is odd"
endif

echo
set n = 23
if ( $n % 2 == 0 ) then
  echo " $n is even"
else
  echo " $n is odd"
endif

exit 0

% ./s1

Environment: LC_ALL = C, LANG = C
(Versions displayed with local utility version)
OS, ker|rel, machine: Linux, 2.6.26-2-amd64, x86_64
Distribution        : Debian GNU/Linux 5.0 
tcsh 6.14.00

 a is 2

 even is 0

 odd is 1

 22 is even

 23 is odd

if ( $n % 2 == 0 ) then
  echo " $n is even"
else
  echo " $n is odd"
endif