Shell Programming and Scripting

Originally Posted by sb008

Depends on what you exactly want, you could make a script with 1 or 2 arguments.

With 1 argument you can specify the name of the file from which you want to cut of the first 20k, the new file will have the same name with ".new" added.

Code:

#!/usr/bin/ksh

dd if=${1} of=${1}.new bs=1k skip=20

Suppose we name this script "cut20k-v1.sh"
You would run it like "./cut20k-v1.sh <file>"

E.g.

Code:

./cut20k-v1.sh testfile

It would cut the first 20k from the file "testfile" and the resullt would be in the file "testfile.new"

You could create a script which takes 2 arguments. The first argument would be the name of the file from which you would like to cut off the first 20k and the second argument would be the name of the file with the first 20k missing.

Code:

#!/usr/bin/ksh

dd if=${1} of=${2} bs=1k skip=20

Suppose we name this script "cut20k-v2.sh"
You would run it like "./cut20k-v2.sh <infile> <outfile>"

E.g.

Code:

./cut20k-v2.sh testfile resultfile

It would cut the first 20k from the file "testfile" and the resullt would be in the file "tesiultfile"