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Full Discussion: Turning files into an array
Top Forums Shell Programming and Scripting Turning files into an array Post 302297663 by ldapswandog on Saturday 14th of March 2009 10:40:25 AM
Old 03-14-2009
Based on this example you should be able to figure out how to total the columns in the output files for yourself.
====================================
Code:
#set -vx
echo -n "Working..."

# # set variables
grades="Good Bad Fair"
files="A B C"
names="Strawberry Banana Plantain Orange"

# # process files
for grade in $grades; do
  echo "$grade" > ${grade}.txt
  echo "A B C" >> ${grade}.txt
  for name in $names; do
    typeset -i file_count=1
    for file in $files; do
      if [[ $grade = Good ]]; then
        value=$(grep $name $file | cut -d" " -f2)
      elif [[ $grade = Bad ]]; then
        value=$(grep $name $file | cut -d" " -f3)
      elif [[ $grade = Fair ]]; then
        value=$(grep $name $file | cut -d" " -f4)
      fi
      if (( $file_count == 1 )); then
        val1=$value
      elif (( $file_count == 2 )); then
        val2=$value
      elif (( $file_count == 3 )); then
        val3=$value
      fi
      typeset -i file_count=$(expr $file_count + 1)
    done
    echo "$name $val1 $val2 $val3" >> ${grade}.txt
  done
done

# # sum columns in each file
for grade in $grades; do
  echo ""
  cat ${grade}.txt
done


Last edited by ldapswandog; 03-14-2009 at 03:50 PM..
 

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SPLIT(1)						    BSD General Commands Manual 						  SPLIT(1)

NAME
split -- split a file into pieces SYNOPSIS
split [-a suffix_length] [-b byte_count[k|m] | -l line_count -n chunk_count] [file [name]] DESCRIPTION
The split utility reads the given file and breaks it up into files of 1000 lines each. If file is a single dash or absent, split reads from the standard input. file itself is not altered. The options are as follows: -a Use suffix_length letters to form the suffix of the file name. -b Create smaller files byte_count bytes in length. If 'k' is appended to the number, the file is split into byte_count kilobyte pieces. If 'm' is appended to the number, the file is split into byte_count megabyte pieces. -l Create smaller files line_count lines in length. -n Split file into chunk_count smaller files. If additional arguments are specified, the first is used as the name of the input file which is to be split. If a second additional argument is specified, it is used as a prefix for the names of the files into which the file is split. In this case, each file into which the file is split is named by the prefix followed by a lexically ordered suffix using suffix_length characters in the range ``a-z''. If -a is not speci- fied, two letters are used as the suffix. If the name argument is not specified, 'x' is used. STANDARDS
The split utility conforms to IEEE Std 1003.1-2001 (``POSIX.1''). HISTORY
A split command appeared in Version 6 AT&T UNIX. The -a option was introduced in NetBSD 2.0. Before that, if name was not specified, split would vary the first letter of the filename to increase the number of possible output files. The -a option makes this unnecessary. BSD
May 28, 2007 BSD
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