Shell Programming and Scripting

# Set line to beginning of file
$line = #not sure how to do this

# Shell to save everything above first delimiter in header
while ($line != "-----")
do
        cat file $line >> temp_file
        mv temp_file file
       # increment $line to next line
done

$ cat ./split_it.sh 
#!/bin/bash

rm -f split_file part.??

cat >split_file <<EOF
a
b
c
-----
d
e
f
-----
g
h
i
-----
j
k
l
EOF

csplit -k -s -f part. split_file /^-----/ "{100}" 2>/dev/null

ls part.?? | while read file; do
   sed '/^-----/ d' ${file} > ${file}.new && mv ${file}.new ${file}
   echo "File ${file} contains:"
   cat ${file}
done

exit 0
$ ./split_it.sh 
File part.00 contains:
a
b
c
File part.01 contains:
d
e
f
File part.02 contains:
g
h
i
File part.03 contains:
j
k
l

sed '/^-----/ d' ${file} > ${file}.new && mv ${file}.new ${file}

csplit -k -s -f part. split_file /^-----/ "{100}" 2>/dev/null
ls part.?? | while read file; do
   echo "File ${file} contains:"
   cat ${file}
done