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Full Discussion: Is there any command in the Bourne shell?
Top Forums Shell Programming and Scripting Is there any command in the Bourne shell? Post 302418714 by methyl on Wednesday 5th of May 2010 10:35:27 AM
Old 05-05-2010
Small problem with the data. The second word does not spell "adios".

Code:
DEC=0097  OCT=141  CHAR=a
DEC=0064  OCT=100  CHAR=@
DEC=0069  OCT=105  CHAR=E
DEC=0111  OCT=157  CHAR=o
DEC=0115  OCT=163  CHAR=s
a@Eos

DEC=0097  OCT=141  CHAR=a
DEC=0100  OCT=144  CHAR=d
DEC=0105  OCT=151  CHAR=i
DEC=0111  OCT=157  CHAR=o
DEC=0115  OCT=163  CHAR=s
adios

I used "bc" to convert from decimal to octal then echo to display the character. Neither of these commands are in bash so there is no point in posting my code.

---------- Post updated at 15:35 ---------- Previous update was at 12:18 ----------

One way to convert from decimal to ascii in modern shell (e.g. bash). There may be better methods.

This script outputs the letter "a" by converting decimal 97 to octal 141 (which is held as 8#141) removes the "8#" prefix then outputs the character equivalent of octal 141 with "print".

Code:
typeset -i8 OCT         # Octal number
typeset -i10 DEC        # Decimal number
DEC=97
OCT=${DEC}
# ${OCT} now contains 8#octal_no
# remove 8# prefix
OCT2=${OCT##8#}
print "\0${OCT2}"

Last edited by methyl; 05-05-2010 at 08:24 AM..
 

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LEARN ABOUT DEBIAN

sethost

SETHOST(1)						      General Commands Manual							SETHOST(1)

NAME

       sethost - Emulates a DEC VT100 terminal

SYNOPSIS

       sethost [options] nodename
       Options:
       [-Vh] [-e char]

DESCRIPTION

       sethost emulates a DEC VT100 terminal.

       This application implements the CTERM protocol over DECnet for connecting to a remote DECnet host emulating a DEC VT100 terminal.
       dnlogin is a replacement for sethost with more compatibility features.

OPTIONS

       -e <char>
	      Set the exit character. By default this is ^]. You can specify the exit character as a control character by preceding it with a cir-
	      cumflex eg (^A means control-A) or as a number in decimal (default), octal (starting with a zero), or hexadecimal (preceded by 0x or
	      0X).

       -h -?  Displays help for using the command.

       -V     Show the version of the package that sethost was built with.

EXAMPLES

       Connect to remote VAX host named "mv3100".

	   sethost mv3100

HELPFUL HINTS

       The CTERM specifications available from Digital does not include how to setup VMS terminal characteristics, so the host cannot identify the
       capabilities of the session we are creating. The simplest workaround is to set the terminal capabilities manually upon login  or  including
       the following command in the login.com DCL procedure.

       $ SET TERM/DEC_CRT

SEE ALSO

       dntype(1), dndir(1), dndel(1), dntask(1), dnping(1)

DECnet utilities						   July 27 1998 							SETHOST(1)
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