Spl Unix commands

basename
The basename command will strip off the directory portion of a filename path and return only the filename itself. In the following example, basename is used to strip the directory path from the filename so it returns simply file.txt.
 

$ basename /this/is/a/file.txt
file.txt
$ ls
Makefile  menu_buttons_test.zip  readme.txt  test  test.c  test.tmp  test_BK
$ basename test.c .c
test
$ basename test.tmp .tmp
test
Note that based on the second argument command will filter out the filename

----
 
To switch to the root user permanently,


$ sudo -s

$ ./install.sh  -u   /* to uninstall the package */