Shell Programming and Scripting

#!/usr/bin/awk -f

BEGIN {
   # This "getline" reads from STDIN - terminate with Return then EOF
   getline input
}

END {
   # Change "./mymatches" to the path to the file containing the matches
   # The match file should have the numbers, space seperated, on ONE line
   getline line < "./mymatches"
   input_count = split( input, input_array, " ");
   line_count = split( line, line_array, " ");
   for ( i = 1; i <= input_count; i++ ) {
      for ( j = 1; j <= line_count; j++ ) {
         if ( input_array[ i ] == line_array[ j ] ) {
             printf( "%s matches\n", input_array[ i ] )
         }
      }
   }
}

$ ./my.awk
10 15 20 25 <return>
<EOF>
10 matches
20 matches
$

#!/usr/bin/awk -f

BEGIN {
   # This "getline" reads from STDIN - terminate with Return then EOF
   getline input
}

END {
   # Change "./mymatches" to the path to the file containing the matches
   # The match file should have the numbers, space seperated, on ONE line
   getline line < "./mymatches"
   input_count = split( input, input_array, " ");
   line_count = split( line, line_array, " ");
   for ( i = 1; i <= input_count; i++ ) {
      for ( j = 1; j <= line_count; j++ ) {
         if ( input_array[ i ] == line_array[ j ] ) {
#           printf( "%s matches\n", input_array[ i ] )
            printf( "(%s) ", input_array[ i ] )
         }
	 else printf( "%s ", line_array[j])
      }
   }
}

#!/usr/bin/awk -f

BEGIN {
   getline input
}

END {
   while ( ( getline readfile < "./mymatches" ) > 0 ) {
      line = line" "readfile
   }
   input_count = split( input, input_array, " ");
   line_count = split( line, line_array, " ");
   for ( j = 1; j <= line_count; j++ ) {
      flag_2 = 0
      for ( i = 1; i <= input_count; i++ ) {
         if ( input_array[ i ] == line_array[ j ] ) {
             printf( "(%s) ", line_array[ j ] )
             flag = 1
             flag_2 = 1
         } else {
             flag = 0
         }
      }
      if ( flag == 0 && flag_2 == 0 ) {
         printf( "%s ", line_array[ j ] )
      }
   }
   printf( "\n" )
}

$ ./my.awk
10 15 20 25
^D
22 44 66 55 (10) 77 (20) 23 45 67 56 11 13 (25)
$

#!/bin/nawk -f
#
BEGIN {
  printf("Input your numbers-> ")
  getline line < "-"
  nl=split(line, lineA, FS)
  for(i=1; i <= nl; i++)
    if ( i != lineA[i]) {
       lineA[lineA[i]]=i
       delete lineA[i]
    }
}

{
   for(i=1; i<=NF; i++)
      if ( $i in lineA)
         $i="(" $i ")"
   print
}