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Full Discussion: ignore blank lines in while loop
Top Forums Shell Programming and Scripting ignore blank lines in while loop Post 302590675 by aish11 on Tuesday 17th of January 2012 06:29:14 AM
Old 01-17-2012
Quote:
Originally Posted by methyl
In your example data a "blank" line consists of a single space character.

Code:
#! /bin/bash
clear
rdCount=0;
while read myline
do
 if [ "${myline}" = " " ]
 then
       continue
 fi
  echo $myline
  let rdCount=$rdCount+1
done < ps.txt
echo "Total line=$rdCount"



hi all,

i have tried above code , its working fine for few file but if my ps.txt file contains the diffent data please find the attachment it gives me the output 6 instead of 3 .


please help me to solve this
ps.txt.zip (251 Bytes) 
 

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GRUB-RENDER-LABEL(1)                                               User Commands                                              GRUB-RENDER-LABEL(1)

NAME

       grub-render-label - generate a .disk_label for Apple Macs.

SYNOPSIS

       grub-render-label [OPTION...] [OPTIONS]

DESCRIPTION

       Render Apple .disk_label.

       -b, --bgcolor=COLOR
              use COLOR for background

       -c, --color=COLOR
              use COLOR for text

       -f, --font=FILE
              use FILE as font (PF2).

       -i, --input=FILE
              read text from FILE.

       -o, --output=FILE
              set output filename. Default is STDOUT

       -t, --text=STRING
              set the label to render

       -v, --verbose
              print verbose messages.

       -?, --help
              give this help list

       --usage
              give a short usage message

       -V, --version
              print program version

       Mandatory or optional arguments to long options are also mandatory or optional for any corresponding short options.

REPORTING BUGS

       Report bugs to <bug-grub@gnu.org>.

SEE ALSO

       The  full  documentation  for grub-render-label is maintained as a Texinfo manual.  If the info and grub-render-label programs are properly
       installed at your site, the command

              info grub-render-label

       should give you access to the complete manual.

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