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Top Forums Shell Programming and Scripting grep on multiple words to match text template Post 302197741 by joeyg on Wednesday 21st of May 2008 02:39:03 PM
Old 05-21-2008
Tools ok, here goes...

As a test, I created 3 sample files. The first two have the proper layout, but the third is missing a field. The program is quite simple in that it counts each successful element. If three, message saying ok but if not then message saying bad.

> cat file1
City: Brockton
Zip: 02330
State: MA

> cat file2
City: Boston
Zip: 02109
State: MA

> cat file3
City: Boston
Zip: 02109
>

Code:
> cat ck_format 
#! /bin/bash
xf="file"
cnt=1
max=5

while [ $cnt -le $max ]
   do
   zf="$xf""$cnt"
#   echo $zf
#verify file integrity
   if [ -s $zf ]
      then
      flag=0
      testf=$(cat $zf | grep "^City:")
      if [ -n "$testf" ]
         then
         flag=$((flag+1))
      fi
      testf=$(cat $zf | grep "^Zip:")
      if [ -n "$testf" ] 
         then
         flag=$((flag+1))
      fi
      testf=$(cat $zf | grep "^State:")
      if [ -n "$testf" ] 
         then
         flag=$((flag+1))
      fi
      if [ $flag -eq 3 ]
         then
          echo "The file "$zf" is a good file"
         else
          echo "The file "$zf" is a bad file"
      fi   
   fi
   cnt=$((cnt+1))
done

program execution is:
> ck_format
The file file1 is a good file
The file file2 is a good file
The file file3 is a bad file
 

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cat(1)							      General Commands Manual							    cat(1)

Name
       cat - concatenate and print data

Syntax
       cat [ -b ] [ -e ] [ -n ] [ -s ] [ -t ] [ -u ] [ -v ] file...

Description
       The  command reads each file in sequence and displays it on the standard output.  Therefore, to display the file on the standard output you
       type:
       cat file
       To concatenate two files and place the result on the third you type:
       cat file1 file2 > file3
       To concatenate two files and append them to a third you type:
       cat file1 file2 >> file3
       If no input file is given, or if a minus sign (-) is encountered as an argument, reads from the standard input file.  Output is buffered in
       1024-byte blocks unless the standard output is a terminal, in which case it is line buffered.  The utility supports the processing of 8-bit
       characters.

Options
       -b   Ignores blank lines and precedes each output line with its line number.

       -e   Displays a dollar sign ($) at the end of each output line.

       -n   Precedes all output lines (including blank lines) with line numbers.

       -s   Squeezes adjacent blank lines from output and single spaces output.

       -t   Displays non-printing characters (including tabs) in output.  In addition to those representations used with the -v  option,  all  tab
	    characters are displayed as ^I.

       -u   Unbuffers output.

       -v   Displays  non-printing  characters (excluding tabs and newline) as the ^x.	If the character is in the range octal 0177 to octal 0241,
	    it is displayed as M-x. The delete character (octal 0177) displays as ^?.  For example, is displayed as ^X.

See Also
       cp(1), ex(1), more(1), pr(1), tail(1)

																	    cat(1)
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