116 lines
2.6 KiB
Bash
Executable File
116 lines
2.6 KiB
Bash
Executable File
#!/usr/bin/ksh
|
|
#
|
|
# SCRIPT: equate_base_10_to_16.ksh
|
|
# AUTHOR: Randy Michael
|
|
# DATE: 07/07/2007
|
|
# REV: 1.2.P
|
|
#
|
|
# PURPOSE: This script is used to convert a base 10 number
|
|
# to a base 16 hexadecimal representation.
|
|
# This script expects that a base 10 number
|
|
# is supplied as a single argument.
|
|
#
|
|
# EXIT CODES:
|
|
# 0 - Normal script execution
|
|
# 1 - Usage error
|
|
#
|
|
#
|
|
# REV LIST:
|
|
#
|
|
#
|
|
# set -x # Uncomment to debug this script
|
|
# set -n # Uncomment to check command syntax without any execution
|
|
#
|
|
#
|
|
#################################################
|
|
# DEFINE FILES AND VARIABLES HERE
|
|
#################################################
|
|
|
|
SCRIPT_NAME=`basename $0`
|
|
|
|
# Set up the correct echo command usage. Many Linux
|
|
# distributions will execute in Bash even if the
|
|
# script specifies Korn shell. Bash shell requires
|
|
# we use echo -e when we use \n, \c, etc.
|
|
|
|
case $(basename $SHELL) in
|
|
bash) alias echo="echo -e"
|
|
;;
|
|
esac
|
|
|
|
#################################################
|
|
# DEFINE FUNCTIONS HERE
|
|
#################################################
|
|
function usage
|
|
{
|
|
echo "\nUSAGE: $SCRIPT_NAME {base 10 number}"
|
|
echo "\nEXAMPLE: $SCRIPT_NAME 694"
|
|
echo "\nWill return the hexadecimal number 2b6"
|
|
echo "\n\t...EXITING...\n"
|
|
}
|
|
|
|
#################################################
|
|
# BEGINNING OF MAIN
|
|
#################################################
|
|
|
|
# Check for a single command-line argument
|
|
|
|
if [ $# -ne 1 ]
|
|
then
|
|
echo "\nERROR: A base 10 number must be supplied..."
|
|
usage
|
|
exit 1
|
|
fi
|
|
|
|
# Check that this single command-line argument is a base 10 number!
|
|
case $1 in
|
|
+([0-9])) BASE_10_NUM=$1
|
|
;;
|
|
*) echo "\nERROR: $1 is NOT a base 10 number"
|
|
usage
|
|
exit 1
|
|
;;
|
|
esac
|
|
|
|
# Assign the base 10 number to the BASE_16_NUM variable
|
|
|
|
BASE_16_NUM=10#$BASE_10_NUM
|
|
|
|
# NOTE: Since base 10 is implied by default,
|
|
# the 10# may be omitted as a prefix. Both notations
|
|
# are supported
|
|
|
|
# Now typeset the BASE_16_NUM variable to base 16.
|
|
# This step converts the base 10 number to a base 16 number.
|
|
|
|
typeset -i16 BASE_16_NUM
|
|
|
|
# Display the resulting base 16 number representation
|
|
|
|
echo $BASE_16_NUM
|
|
|
|
# This following code is optional. It removes the number base
|
|
# prefix. This may be helpful if using this script with
|
|
# other programs and scripts.
|
|
#
|
|
# Set up the correct awk usage. Solaris needs to
|
|
# use nawk instead of awk.
|
|
#
|
|
# case $(uname) in
|
|
# SunOS) AWK="nawk"
|
|
# ;;
|
|
# *) AWK="awk"
|
|
# ;;
|
|
# esac
|
|
#
|
|
# Strip out the base prefix and the pound sign (#). (Optional)
|
|
#
|
|
# echo $BASE_16_NUM | grep -q "#"
|
|
#
|
|
# if (($? == 0))
|
|
# then
|
|
# echo $BASE_16_NUM | $AWK -F '#' '{print $2}'
|
|
# else
|
|
# echo $BASE_16_NUM
|
|
# fi
|