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Full Discussion: How to use a function?
Top Forums UNIX for Dummies Questions & Answers How to use a function? Post 302731373 by Vitaly on Wednesday 14th of November 2012 11:07:25 PM
Old 11-15-2012
I changed my code
As you can see i must use "Usage:" as my function so i changed my code to fullfill the assignment but it doesn't seem its working correctly. I'm new to unix to the whole using function is confusing. This is the new code im trying in my script:

Code:
#Vitaly Kuzyanov
usage()
{
 [ $# -eq 0 ]
 echo "usage: $0 argument"
}
if usage
     then echo "Enter 1 or more arguments"
     else "There were $# arguments on the command line"
     exit 1
fi

Last edited by Scrutinizer; 11-15-2012 at 01:58 AM.. Reason: code tags
 

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LEARN ABOUT CENTOS

fontimage

FONTIMAGE(1)						      General Commands Manual						      FONTIMAGE(1)

NAME

       fontimage - produce a font thumbnail image

SYNOPSIS

       fontimage [--help] [--width num] [--height num] [--pixelsize num] [--text string] [--o outputfile] [--usage] [--version] fontfile

DESCRIPTION

       The  program  fontimage	loads  a font, which may be in any format fontforge(1) can read, and then produces an image showing representative
       glyphs of the font.

OPTIONS

       --help Provide a description with a list of the available options.

       --width num
	      Specifies the width of the output image. If this is omitted the image will be as wide as necessary to display the text.

       --height num
	      Specifies the height of the output image. If this is omitted the image will be as high as necessary to display the text.

       --pixelsize num
	      Specifies the pixelsize used to display the text. This argument may be specified multiple times and each refers to any --text  lines
	      that follow it.

       --text string
	      Specifies  a  line  of  text to be displayed. The string must be in UTF-8.  This argument may be specified multiple times to provide
	      several lines of text. If no --text arguments are supplied fontimage will examine the font, looking for  various	scripts  it  knows
	      about, and will try to display something appropriate for each.

       -o  outfile
	      Specifies the output filename for the image. The type of image will be determined by the file's extension. Currently only ".bmp" and
	      ".png" are recognized. If omitted fontimage will choose an output name based on the font's fontname field.

       --usage
	      Display the usage description.

       --version
	      Display the current version

SEE ALSO

       fontforge(1)

       The HTML version of the fontforge manual at:
       http://fontforge.sourceforge.net/

AUTHOR

       Copyright (C) 2006 by George Williams (gww@silcom.com).

								  26 October 2006						      FONTIMAGE(1)
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