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Full Discussion: AWK/SED: handle max chars in a line
Top Forums Shell Programming and Scripting AWK/SED: handle max chars in a line Post 302515187 by Shell_Life on Tuesday 19th of April 2011 10:57:30 AM
Old 04-19-2011
See if this works for you:
Code:
#!/usr/bin/ksh
typeset -i mLen
mPrevLine=''
sed 's/\\//' Inp_File | while read mLine
do
  mLine2=${mPrevLine}${mLine}
  mLen=${#mLine2}
  if [[ ${mLen} -ge 20 ]]; then
    while [[ ${mLen} -ge 20 ]]; do
      mOutLine=$(echo ${mLine2} | cut -c1-19)
      echo ${mOutLine}'\'
      mLine2=$(echo ${mLine2} | cut -c20-)
      mLen=${#mLine2}
      mPrevLine=${mLine2}
    done
  else
    echo ${mLine2}
    mPrevLine=''
  fi
done

PS: According to your rule, your solution should not have a "\" on the following line:
Code:
...
1234567890123456789\ <=====
1234567890123456789\
1234

This User Gave Thanks to Shell_Life For This Post:
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LEARN ABOUT LINUX

igawk

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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