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Top Forums Shell Programming and Scripting Shell script to read little complex values Post 302916043 by linuxUser_ on Saturday 6th of September 2014 09:35:16 AM
Old 09-06-2014
Quote:
Originally Posted by pilnet101
That error was because the -v flag passed to awk, which means awk is expecting a variable, had no variable given to it, it was used on its own.

Looking at what you need to do with your given input file, you can use a shell while loop alone:

Code:
while read -r line
do
    echo ${line%;*}
done < file.txt

I am writing ST,SA etc to check whether that variables read properly or not.

I removed that option v but still unable to read variables.
Can you write a script for below file and out put variables as I described in my previous threat?

Code:
Heroname Hrithik; heroAge 19; lastMarriedGalsAge 35.54312;

---------- Post updated at 07:05 PM ---------- Previous update was at 06:53 PM ----------

Quote:
Originally Posted by Scrutinizer
Another example of a read method (with that theoretical input sample), like pilnet101 suggested:

Code:
while IFS=$IFS\; read name val
do
  case $name in
     Heroname)
       SF=$val  ;;
     heroAge)
       ST=$val  ;;
     lastMarriedGalsAge)
       SA=$val  ;;
  esac
done < file

Or if they are always in the same order:
Code:
{ 
   IFS=$IFS\; read dummy SF
   IFS=$IFS\; read dummy ST
   IFS=$IFS\; read dummy SA
} < file

Thankyou Smilie
 

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IGAWK(1)							 Utility Commands							  IGAWK(1)

NAME
igawk - gawk with include files SYNOPSIS
igawk [ all gawk options ] -f program-file [ -- ] file ... igawk [ all gawk options ] [ -- ] program-text file ... DESCRIPTION
Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1). AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like @include getopt.awk in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path. OPTIONS
See gawk(1) for a full description of the AWK language and the options that gawk supports. EXAMPLES
cat << EOF > test.awk @include getopt.awk BEGIN { while (getopt(ARGC, ARGV, "am:q") != -1) ... } EOF igawk -f test.awk SEE ALSO
gawk(1) Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995. AUTHOR
Arnold Robbins (arnold@skeeve.com). Free Software Foundation Nov 3 1999 IGAWK(1)
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