Outline:
I. Command
II. egrep/ grep
III. Regular Expression/ Shell Globbing
IV. Syntax
Identify cmd name options, arguments if any, in the following cmd lines.
$ ls -l / /usr .
- Command:
ls
- Options:
-l
- Arguments:
/
, /usr
, .
- Explanation: This ls command is used to list the contents of directories.
ls
: This command is used to list directory contents.-l
: This option specifies a long listing format, providing detailed information about each file or directory./
: This is the root directory of the filesystem. When used as an argument to ls
, it lists the contents of the root directory./usr
: This is a directory typically containing user binaries, libraries, and other shared resources..
: This represents the current directory. When used as an argument to ls
, it lists the contents of the current directory.
$ cat /etc/passwd ../../project
- Command:
cat
- Arguments:
/etc/passwd
, ../../project
- Explanation: This cat command is used to concatenate and display the contents of…