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Full Discussion: Binary write POSIX-ly.
Top Forums UNIX for Advanced & Expert Users Binary write POSIX-ly. Post 302980449 by RudiC on Sunday 28th of August 2016 04:53:04 AM
Old 08-28-2016
Isn't that approach a bit overcomplicated? Why not save some lines of code, some variables, and reduce the amount of data shoved to and fro?
Code:
binary () 
{ 
    printf '%s\n' $1 | while read octal; do
        while [ "${#octal}" -gt 0 ]; do
            subtx=${octal%"${octal#???}"};
            octal=${octal#"${subtx}"};
            printf '%b' "\0$subtx";
        done;
    done
}

Call it like binary "$aplit_octal".
This User Gave Thanks to RudiC For This Post:
wisecracker
 

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LEARN ABOUT DEBIAN

gbase

gbase(1)						      General Commands Manual							  gbase(1)

NAME

       gbase - small numeric base converter

SYNOPSIS

       gbase [options]

DESCRIPTION

       gbase converts numbers between bases 2 (binary), 8 (octal), 10 (decimal), 16 (hexadecimal).

       If you specify a number on the command line (preceded by a switch to describe the base the number is in) the program will display that num-
       ber in the four bases on the console and exit.
       You can also specify the -s switch which will allow you to enter/display signed numbers. (This allows the use of a - (minus) before a deci-
       mal number).

       Just  running  the program without any switches will display the main window. There are four entry boxes, corresponding to each of the four
       bases. You can type into any of these boxes and the others will update automagically. The program will ignore any characters that  are  not
       allowed for that particular base. It will only allow a - (minus) at the start of a decimal number, if the signed option is on.

OPTIONS

       --help Display a short help screen and exit

       --version
	      Print version number and exit

       -s     Treat the number as a signed value

       -d decimal number
	      Print this decimal number in all bases

       -h hex number
	      Print this hexadecimal number in all bases

       -o octal number
	      Print this octal number in all bases

       -b binary number
	      Print this binary number in all bases

AUTHOR

       gbase is Copyright (C) 1999 Damian Kramer, Roger Dunce.

gbase								    August 2003 							  gbase(1)
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