Very Computer

1. Numbering a text file (UNIX 'number' command)

SUMMARY:
1. Use 'nl':
   csh% /usr/bin/nl text.file > numbered.text.file

2. Use 'pr':
   csh% /usr/bin/pr -nt < text.file > numbered.text.file

3. Use 'awk':
   csh% cat -n file > file2  ; awk '{print NR, $0}' file > file2
   csh% awk '{print NR, $0}' infile > outfile

4. Use 'perl':
   dos> perl -e "my $num =1;while(<>) {print \"$num $_\"; $num +=1;}" file
   csh% perl -e 'my $num =1;while(<>) {print  "$num $_";  $num +=1;}' file

5. Use 'number':
   csh% number filename

Where 'number' is as shown below:
#!   /bin/csh  -f
############################################################################
# Name: number
# Intent: number any text file
# Author: Eunice Santorini, Version 1.00 July 10, 2002
# Revision: 1.05 July 10, 2002
############################################################################

# /usr/bin/nl, e.g.:
#  csh% /usr/bin/nl text.file > numbered.text.file
#

#  csh% /usr/bin/pr -nt < text.file > numbered.text.file
#

# suggested awk, e.g.:
#  csh% cat -n file > file2  ; awk '{print NR, $0}' file > file2
#       For uniform width, use awk printf formatting instead of print.
#  csh% awk '{print NR, $0}' infile > outfile
#
# Mark Mieschler suggested perl:
#  dos> perl -e "my $num =1;while(<>) {print \"$num $_\"; $num +=1;}" file
#  csh% perl -e 'my $num =1;while(<>) {print  "$num $_";  $num +=1;}' file
############################################################################
if ( $#argv >= 1) then
 set INFILE = $1
 set NUMFILE = $INFILE.$$
     if (-f $INFILE) then
       set OUTFILE = ${INFILE}.$$$
       set number=`wc -l $INFILE | awk '{print $1}'`

       echo $count > $NUMFILE
        while ($count <= $number)

          echo $count >> $NUMFILE
        end
       paste -d" " $NUMFILE $INFILE > $OUTFILE
       $EDITOR $OUTFILE
     else
       echo "Sorry, $INFILE does not seem to exist ..."
     endif
 else
  echo "Ooops ... missing file name ..."
  echo "Example: $0 filename"
endif
exit 0

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