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Full Discussion: Trouble displaying parameters passed into a for loop
Top Forums UNIX for Dummies Questions & Answers Trouble displaying parameters passed into a for loop Post 302585976 by kikilahooch on Thursday 29th of December 2011 11:26:53 PM
Old 12-30-2011
Trouble displaying parameters passed into a for loop
Code:
#!/bin/bash

function check_num_args()

{
        if [ $# -eq 0 ]; then
                echo "Please provide a file name"
        else
                treat_as_file $*
        fi
}


function treat_as_file()
{
        numFiles=$#
        for((i=1;i<=$numFiles;i++));do
        echo $i
        done
}

check_num_args $*

Hi,

I'm new to this and am having trouble with my code above. In my function treat_as_file(), I want to display the parameters that have been passed into it. If for example when I run my file, I pass parameters 'file1' file2' 'file3', I want my code to echo 'file1' file2' 'file3'. At the moment it is displaying 1 2 3.

I have tried changing it to echo $$i but this displays my process id + i, and I have also tried echo \$$i but this displays $1 $2 $3.

Your help would be appreciated.
Thanks
 

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LEARN ABOUT CENTOS

paps

PAPS(1) 						      General Commands Manual							   PAPS(1)

NAME

       paps - UTF-8 to PostScript converter using Pango

SYNOPSIS

       paps [options] files...

DESCRIPTION

       paps reads a UTF-8 encoded file and generates a PostScript language rendering of the file. The rendering is done by creating outline curves
       through the pango ft2 backend.

OPTIONS

       These programs follow the usual GNU command line syntax, with long options starting with  two  dashes  (`-').   A  summary  of  options	is
       included below.

       --landscape
	      Landscape output. Default is portrait.

       --columns=cl
	      Number of columns output. Default is 1.

       --font=desc
	      Set the font description. Default is Monospace 12.

       --rtl  Do rtl layout.

       --paper ps
	      Choose paper size. Known paper sizes are legal, letter, a4. Default is A4.

       --bottom-margin=bm
	      Set bottom margin in postscript points (1/72 inch). Default is 36.

       --top-margin=tm
	      Set top margin. Default is 36.

       --left-margin=lm
	      Set left margin. Default is 36.

       --right-margin=rm
	      Set right margin. Default is 36.

       --help Show summary of options.

       --header
	      Draw page header for each page.

       --markup
	      Interpret the text as pango markup.

       --encoding=ENCODING
	      Assume the documentation encoding is ENCODING.

       --lpi  Set the lines per inch. This determines the line spacing.

       --cpi  Set the characters per inch. This is an alternative method of specifying the font size.

       --stretch-chars
	      Indicates  that  characters  should be stretched in the y-direction to fill up their vertical space. This is similar to the texttops
	      behaviour.

AUTHOR

       paps was written by Dov Grobgeld <dov.grobgeld@gmail.com>.

       This manual page was written by Lior Kaplan <kaplan@debian.org>, for the Debian project (but may be used by others).

								  April  17, 2006							   PAPS(1)
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