*n*x

The korn shell is a great shell to write shell scripts. Some functionalities are really nice. By example, you can write your functions or modules in a separate file and use it within your program. The secret lies in the FPATH environment variable.

root@labo:~/tmp# tree
.
|-- main.ksh
`-- modules
___`-- module
1 directory, 2 files

root@labo:~/tmp# cat modules/module
module() {
echo The module works
}

root@labo:~/tmp# cat main.ksh
#!/bin/ksh
echo "If I get an answer, the module works:"
module

root@labo:~/tmp# ./main.ksh
If I get an answer, the module works:
./main.ksh[3]: module: not found

root@labo:~/tmp# FPATH=/export/home/claudio/tmp/modules
root@labo:~/tmp# export FPATH
root@labo:~/tmp# ./main.ksh
If I get an answer, the module works:
The module works