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Full Discussion: Convert hexadecimal value in decimal value
Top Forums Shell Programming and Scripting Convert hexadecimal value in decimal value Post 302738423 by Franklin52 on Saturday 1st of December 2012 10:59:30 AM
Old 12-01-2012
Try this awk code:
Code:
awk 'BEGIN {
  h["0"]="0"; h["1"]="1"; h["2"]="2"; h["3"]="3"
  h["4"]="4"; h["5"]="5"; h["6"]="6"; h["7"]="7"
  h["8"]="8"; h["9"]="9"; h["A"]="10"; h["B"]="11"
  h["C"]="12"; h["D"]="13"; h["E"]="14"; h["F"]="15"
}
{
  l=length($0)
  s=h[substr($0,l--,1)]
  for(i=l;i>=1;i--) {
    s=s+ h[substr($0,i,1)]*(16^++j)
  }
  print s
}'


This is the out I get with with an example:
Code:
$ year=54
$ year=$(echo $year| awk 'BEGIN {
  h["0"]="0"; h["1"]="1"; h["2"]="2"; h["3"]="3"
  h["4"]="4"; h["5"]="5"; h["6"]="6"; h["7"]="7"
  h["8"]="8"; h["9"]="9"; h["A"]="10"; h["B"]="11"
  h["C"]="12"; h["D"]="13"; h["E"]="14"; h["F"]="15"
}
{
  l=length($0)
  s=h[substr($0,l--,1)]
  for(i=l;i>=1;i--) {
    s=s+ h[substr($0,i,1)]*(16^++j)
  }
  print s
}')
$
$ echo $year
84
$

 

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LEARN ABOUT DEBIAN

mencal

mencal(1)								 1								 mencal(1)

NAME

       mencal - menstruation calendar

SYNOPSIS

       mencal [options] [file1 file2 ... -c CONF1 -c CONF2 ...]

DESCRIPTION

   Display options:
       -m, --monday
	      draw monday as first weekday (sunday is default)

       -1     current month (default)

       -3     previous, current and next month

       -y [YYYY]
	      all-year calendar (default YYYY is current year)

       -q, --quiet
	      no top information will be printed

       -n, --nocolor
	      noncolored output

       -i, --icolor COLOR
	      intersection color (default red)

	      available colors: red, green, blue, yellow, violet, cyan, shiny, bold

   mencal configuration:
       -c, --config
	      s=[YYYY]MMDD,l=LL,d=DD,n=NAME,f=FILE,c=COLOR

	      The  second argument is a comma separated list of options. No spaces are allowed in this list. If no name is specified, 'Unknown' is
	      used.  Various -c options or filenames can be set.

       s,start=[YYYY]MMDD
	      start day of period (default current day)

       l,length=LL
	      length of period in days (default 28)

       d,duration=D
	      duration of menstruation in days (default 4)

       n,name=NAME
	      name of subject

       f,file=FILE
	      filename to save configuration to (see section FILES)

	      only menstruation related variables will be saved

       c,color=COLOR
	      color used for menstruation days

	      available colors: red, green, blue, yellow, violet, cyan, shiny, bold default color is red, with	'-n'  switch  color  settings  are
	      ignored

   Info options:
       -h, --help
	      print help

       -V, --version
	      print version information

FILES
:
       $HOME/.mencalrc - the default configuration file that is automatically loaded

AUTHOR
:
       (C) 2002 C. McCohy
       e-mail: <mccohy@kyberdigi.cz>
       Word-Wide-Web: http://www.kyberdigi.cz/projects/mencal/english

       This  manual  page  was	written for the Debian GNU/Linux distribution because the original program does not have a manual page (but may be
       used by others).

HISTORY

       22 March 2002 - Originally written by Amaya Rodrigo <amaya@debian.org>.
       24 Apr 2002 - New manpage contributed by Pablo S. Torralba <psanchez@skyrealms.org>.
       Amaya Rodrigo <amaya@debian.org> is now responsible for developing and maintaining this manual page. Comments and suggestions  are  greatly
       wellcome.

mencal							       Menstruation calendar							 mencal(1)
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