Shell Programming and Scripting

ls -la

1.DE.1.TXT
2.DE.2.TXT
3.DE.2.TXT
4.DE.2.TXT
5.DE.5.TXT
6.DE.6.TXT
7.DE.7.TXT
Fe.ok

<a_number><a_dot><a_random_string>

1.gjsdlfjds
2.fsdjklmghsj
3.fjdksfdsq
4.xoop.txt
5.DE.5.TXT
6.DE.6.txt
92.gjefdlkghlmdsjgld
...

<a_number><a_dot><a_random_string>

1.gjsdlfjds
2.fsdjklmghsj
3.fjdksfdsq
4.xoop.txt
5.DE.5.TXT
6.DE.6.txt
92.gjefdlkghlmdsjgld

flag="/usr/xyz/abc.dat"
[[ -f "$flag" ]] && rm -f "$flag"

chk_file(){
RC=0
[[ ! -f "$1" ]] && echo "File missing: $1" && RC=1
return $RC
}

i=0
while [ $i -lt 100 ]
do

     if [ $(ls $i.* | wc -l 2>/dev/null) -gt 1 ]
     then
          echo "Error : more than 1 File found starting with increment $i, script aborted"
          exit 1
     fi

     filename=$(ls $i.*)
     filename2=$(ls *Fe.ok | tail -1) 

      chk_file "${filename}" || break
     chk_file "${filename2}" || break

     cp "${filename}" "${filename2}" /usr/dob

     if ( ! /pathname/my_script.ksh >/dev/null 2>&1 )
     then
          echo "Error from /pathname/my_script.ksh"
          break
     fi
     let i+=1
done

 1.NL_DEMAND1.DAT
2.NL_DEMAND.DAT
3.NL_DEMAND3.DAT
4.NL_DEMAND4.DAT
5.NL_DEMAND4.DAT
7.NL_DEMAND4.DAT
15.NL_DEMAND4.DAT

#!/usr/bin/somesh   (ksh, bash, dash, ...)
# doit
pwd=$PWD

for f in $@
do
        case "$f" in
                *.ok) continue ;;
                +([0-9]).*) ;;  # file starting with number dot ... are interesting
                *) continue ;;  # something else ...
        esac

        IFS="." arr=($f)  # split filename to array using .
        f1="${arr[0]}"    # take 1st field

        okfile=$f1.Fe.ok  # ok filename
        if [ -f "$okfile" -a -f "$f" ]   
        then
                cp "$f"  "$okfile"  to_dest
                cd to_dest
                ./some_script
                ERROR=$?
                ((ERROR > 0 )) && echo "$f" && exit $ERROR
                 cd $pwd
        else # no ok file, ??? or $f is  not file
                :
        fi
done

chmod a+rx doit
errfile=$(./doit *  )
echo "exit status:$? and file:$errfile "