Bash Interpreter Commands

Question 1

Device Information Gathering:

1. uname
   
   • a
2. lsblk

Answer 1

1. Unix Name
   A. kernel n, node n, kernel release, kernel version, CPU arch, OS
2. List block devices(disk/partitions)

Question 2

Security & Privileges:
1. sudo
2. su
3. chmod
    3modes=r,w,x/4,2,1 (for comb +)
    3users= owner,usergroup,world
4. chown 

 :  4. md5sum

Answer 2

1. Super user do - priv command exe
2. Super User log in
3. Change file mode bits(permissions)
4. Change file owner and group.
   A. Owner
   B. Group
5. Compute & Check MD5 Mssg Digest
   (Less secure that sha1sum)

Question 3

File/Directory Manipulation:

1. mkdir
2. touch

Answer 3

1. Make directory

2. Update access and modification times of each file to current time
Will create a new file if nonexistent

Question 4

Navigation:

1. ls
   
   • a
   • l
2. history / Ctrl+R

Answer 4

1. List Directory Contents
   A. Incl hidden
   B. Incl permissions,owner,group,size,mod date/name
2. History (event) Record
3. List Block Devices

Question 5

Package Installation/Prog Compilation:

1.apt-get
B. install
2.apt-cache
A. pkgnames

Answer 5

1
A. Installs selected package
2. Identify Package Dependencies and search for apt installed pkgs
A. List all available packages