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Top Forums UNIX for Beginners Questions & Answers Bash script problems int to binary Post 303041405 by rbatte1 on Friday 22nd of November 2019 10:53:14 AM
Old 11-22-2019
One wonders why if this is not homework.

How about using what's already available and set the length like this:-
Code:
#!/bin/bash

number_in=123
length=20              # Perhaps this is ridiculous, but it proves the point.

number_out=$(echo "obase=2 ; print $number_in" | bc)
printf "%0${length}d\n" "${number_out}"



I hope that this helps,
Robin
 

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_decodebinary64(3M)													       _decodebinary64(3M)

NAME
_decodebinary64(), _decodebinary128(), _decodebinary32() - decode binary-encoded decimal data SYNOPSIS
DESCRIPTION
There are two standard bit-encodings for decimal floating-point data: binary and decimal. Both encoding provide exactly the same data (analogous to big endian and little endian encodings). The HP-UX decimal floating-point types use the binary encoding. The function decodes x, interpreted as a binary-encoded 64-bit decimal datum, into the encoding for is a version of it takes a argument and returns a result. is a version of it takes a argument and returns a result. These math functions are supported for HP-UX 11i Version 3 September 2008 Update and forward. USAGE
To use any of these functions, compile with the option. Make sure your program defines and then includes Link in the math library by specifying or on the linking command line. For more information, see the at the following site: RETURN VALUE
returns x in the encoding for raises no exceptions. ERRORS
No errors are defined. SEE ALSO
_decodedecimal64(3M), _encodebinary64(3M), _encodedecimal64(3M, math(5). STANDARDS CONFORMANCE
These functions are not specified in any standard. HP Integrity Server Only _decodebinary64(3M)
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