Mine

#!/bin/bashmyFileHodn="hodnoceni.txt"myFileStud="students.txt"for (( i=1 ; i <= $# ; i++ )) ;do     eval arg='$'$i     if ["$arg" = "-h"] ;then i=`expr $i + 1`; eval arg='$'$i ; myFileHodn=$arg     elif ["$arg" = "-s"] ;then i=`expr $i + 1`; eval arg='$'$i ; myFileStud=$arg     else echo "$arg je neznamy argument." ; exit     fi     donea='RETAZEC_KTORY_NIKTO_NIKDY_NEPOUZIJE'echo testujeme  echo '' > xxxtemp.txt  cat $myFileHodn | while myLineHodn=`line`  doecho testujeme2     temphodn="$allFile"     allFile="$temphodn $myLineHodn"      output=`echo $myLineHodn | sed -e "s/ /$a/mg"`     output=`echo $output | sed -e 's/;/ /mg'`     counter=0     for word in $output ; do	eval xhodn_$counter='`echo $word | sed -e "s/$a/ /mg"`'	let counter++  # increasing counter     done       cat $myFileStud | while myLineStud=`line`       do         tempstud="$allFile"         allFile="$tempstud $myLineStud"         output=`echo $myLineStud | sed -e "s/ /$a/mg"`         output=`echo $output | sed -e 's/;/ /mg'`         counter=0         for word in $output ; do	    eval xstud_$counter='`echo $word | sed -e "s/$a/ /mg"`'	    let counter++  # increasing counter         doneif [ "$xhodn_0" = "$xstud_1" ] ;then if [ "$xhodn_1" = "A" ] ;then xstud_2=$xhodn_2                                   elif [ "$xhodn_1" = "a" ] ;then xstud_2=$xhodn_2                                   elif [ "$xhodn_1" = "B" ] ;then xstud_3=$xhodn_2                                   elif [ "$xhodn_1" = "b" ] ;then xstud_3=$xhodn_2                                   elif [ "$xhodn_1" = "C" ] ;then xstud_4=$xhodn_2                                   elif [ "$xhodn_1" = "c" ] ;then xstud_4=$xhodn_2                                   elif [ "$xhodn_1" = "E" ] ;then xstud_5=$xhodn_2                                   elif [ "$xhodn_1" = "e" ] ;then xstud_5=$xhodn_2fifixstud_6=`expr $xstud_2 + $xstud_3 + $xstud_4 + $xstud_5`echo "$xstud_0;$xstud_1;$xstud_2;$xstud_3;$xstud_4;$xstud_5;$xstud_6" >> xxxtemp.txtdonemv xxxtemp.txt "$myFileStud"done