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UNIX for Dummies Questions & Answers
Using printf in bash
Post 302751777 by Scrutinizer on Friday 4th of January 2013 12:26:00 PM
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What is the output of the following program considering an x86 based parameter passing sequence where stack grows towards lower memory addresses and that arguments are evaluated from right to left:
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Dear all,
I have the following question. Let's say that I have the following script
#!/bin/bash
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a=` printf "%6.2f" $value `
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LEARN ABOUT MINIX
pbmupc
pbmupc(1) General Commands Manual pbmupc(1) NAME
pbmupc - create a Universal Product Code bitmap SYNOPSIS
pbmupc [-s1|-s2] type manufac product DESCRIPTION
Generates a Universal Product Code symbol. The three arguments are: a one digit product type, a five digit manufacturer code, and a five digit product code. For example, "0 72890 00011" is the code for Heineken. As presently configured, pbmupc produces a bitmap 230 bits wide and 175 bits high. The size can be altered by changing the defines at the beginning of the program, or by running the output through pnmenlarge or pnmscale. OPTIONS
The -s1 and -s2 flags select the style of UPC to generate. The default, -s1, looks more or less like this: |||||||||||||||| |||||||||||||||| |||||||||||||||| |||||||||||||||| 0||12345||67890||5 The other style, -s2, puts the product type digit higher up, and doesn't display the checksum digit: |||||||||||||||| |||||||||||||||| 0|||||||||||||||| |||||||||||||||| ||12345||67890|| SEE ALSO
pbm(5) AUTHOR
Copyright (C) 1989 by Jef Poskanzer. 14 March 1989 pbmupc(1)