Shell Programming and Scripting

#! /bin/ksh  
                                                                                        
typeset -x test=0
for i in 1 2 3
do
    print "s1.sh: $test"
    (( test += 1))
done

./script2.sh

#! /bin/ksh  
while [ $test -lt 10 ]
do
    print "t2.sh: $test"
    (( test += 1 ))
done

script1.sh: 0
script1.sh: 1
script1.sh: 2
script2.sh: 3
script2.sh: 4
script2.sh: 5
script2.sh: 6
script2.sh: 7
script2.sh: 8
script2.sh: 9

process_file(){
    create small_files
    for file in small_file*
    do
        /ext/script $file
    done
}

put_back_file(){
    for file in small_file*
    do
         if [ cond ]
         then
                cat $file >> new_big_file
         fi
    done
}

do_the_work(){
    process_file
     while [ ! -f small_file* ]
    do
          sleep 5
    done
    put_back_files
}

do_the_work
if [ -f new_big_file ]
then
    mailx -s "whatever" client.email < new_big_file
else
    echo "can't see new_big_file"
fi

check_file_count(){
    filecount=10
    if [ -f small_file* ]
    then
           mycount=`ls small_file* | wc -l`
           while [ $mycount -lt  $filecount ]
           do
                sleep 5
                mycount=`ls small_file* | wc -l`
           done
    else
          sleep 5
          check_file_count
     fi
}

do_the_work(){
    process_file
    check_file_count
    put_back_files
}

do_the_work
if [ -f new_big_file ]
then
    mailx -s "whatever" client.email < new_big_file
else
    echo "can't see new_big_file"
fi