Traverse a flatfile and check for errors

Shell Programming and Scripting
1

Hi,

I need to check a flatfile for various parameters like length of the record, format of record, any tab character present in the record etc.,
for checking presence of tab character, i'm trying to use the following code and i'm not sure if the same is right. Pls Help.

nawk '{print length($0)}' $fdate > filelength.txt
totrec=`cat filelength.txt | wc -l`
i=1
while [ $i -le $totrec ]
if [ $i -gt 1 ] && [ $i -lt $totrec ]; then
    if [ D -eq `nawk "(NR==${i}){print}" $fdate | cut -b1` ]; then
        if [ `nawk "(NR==${i}){print}" filelength.txt` -eq 3168 ]; then
        tabrec=`nawk '/[\t]/ {if (NR==\$i) {print $0} }' $fdate`
        echo $tabrec
            if [ `nawk '/[\t]/ {if (NR==\$i) {print NR} else {print 0} }' $fdate` ]; then
            echo "The Detail record $i has a tab character inside it"
            nawk "(NR==${i}){print} $fdate" >> ./error/$fdate.err
            else
            echo "The Detail record $i looks fine"
            nawk "(NR==${i}){print} $fdate" >> ./output/$fdate.dat
            fi
        else
        echo "The Detail record $i length is not proper"
        nawk "(NR==${i}){print} $fdate" >> ./error/$fdate.err
        fi
    else
    echo "The Detail record $i format is not proper"
    nawk "(NR==${i}){print} $fdate" >> ./error/$fdate.err
    fi
fi
i=`expr $i + 1`
done

I check for Record to start with 'D' and total record length to be equal to 3168 and if tab is present in the record.

Thanks in Advance.

Regards,
Aravind. C

2

First take a look at Useless Use of Cat and corect your script, second use code tag.
Note: You can edit your original post.