#! /bin/sh
# #############################################################################

       NAME_="longl"
       HTML_="print long lines in file"
    PURPOSE_="print name of the file that contains lines longer then n chars"
   SYNOPSIS_="$NAME_ [-hl] <n> <file> [file...]"
   REQUIRES_="standard GNU commands"
    VERSION_="1.0"
       DATE_="2004-06-07; last update: 2004-06-21"
     AUTHOR_="Dawid Michalczyk <dm@eonworks.com>"
        URL_="www.comp.eonworks.com"
   CATEGORY_="text"
   PLATFORM_="Linux"
      SHELL_="bash"
 DISTRIBUTE_="yes"

# #############################################################################
# This program is distributed under the terms of the GNU General Public License

usage () {

echo >&2 "$NAME_ $VERSION_ - $PURPOSE_
Usage: $SYNOPSIS_
Requires: $REQUIRES_
Options:
     <n>, an integer referring to minimum characters per line
     -h, usage and options (this help)
     -l, see this script"
    exit 1
}

# enabling extended globbing
shopt -s extglob 

# arg handling and execution
case $1 in

    -h) usage ;;
    -l) more $0; exit 1 ;;
    +([0-9])) # arg1 can only be an integer

    n=$1
    shift
    for a in "$@";do

        c=0
        IFS=\n
        while read line;do
 
            if (( ${#line} > $n ));then
                echo "chars: ${#line} line#: $c file: $a"
            fi 
            ((c++))
 
       done < $a

    done ;;

    *) echo "invalid argument, type "$NAME_ "-h for help"; exit 1 ;;

esac