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| What is a special program used as an interface between the user and the heart of the UNIX/Linux operating system? |
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Definition
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| What are the three prominent and supported shells on most UNIX systems? |
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Definition
- Bourne shell (AT&T)
- C shell (Berkeley)
- Korn shell (superset of Bourne shell) |
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Term
| What is ultimately responsible for making sure that any commands typed at the prompt get executed properly? |
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| What is a program in execution and can be identified by its unique PID number? |
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| What command with its manu options displays a list of the processes currently running in a number of formats? |
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| What command displays all processes as a tree with its root being the first process that runs? |
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| What is a request for kernel services and is the only way a process can access the system's hardware? |
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Definition
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Term
| How is a process created in UNIX? |
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Definition
| with the fork system call |
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Term
| A new program can terminate at any time by executing what? |
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Definition
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| A process can be terminated by using keystroke-generated signals like Ctrl-C or Ctrl-\, or by using what? |
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Term
| What command changes permissions on files and directories? |
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Term
| A total of how many bits constitutes the permissions on a file? |
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Definition
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Term
| What command changes the owner and group on files and directories? |
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Definition
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Term
| What command is used to change the working directory? |
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Definition
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Term
| The shell can define what two types of variables? |
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Term
| What allows processes to communicate with each other? |
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Definition
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Term
| There are some characters thta are evaluated by the shell in a special way. They are known as what? |
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Term
| What are descriptive material perced by a # sign? They are not executable commands. |
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Definition
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Term
| To print output to the screen what command is used? |
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Definition
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Term
| What is a list of words separated by whitespace? |
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Definition
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Term
| UNIX/Linux systems come with which two types of user accounts? |
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Definition
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Term
| The superuser account in UNIX/Linux is more commonly known as what? |
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Definition
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Term
| Which command allows you to become another user without logging off? |
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Definition
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Term
| What is the first process the kernel creates which is the parent of all processes, with a PID number of 1? |
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Term
| What is a process that runs in the background and performs one or more tasks on a user's behalf? |
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Term
| Which command encrypts and decrypts the contents of a file? |
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Definition
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Term
| Which command compares two files for differences? |
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Definition
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Term
| Which command displays informtion about local and remote users? |
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Definition
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Term
| Which command sends output to a printer? |
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Definition
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Term
| Which command lists contents of directory? |
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Definition
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Term
| Which command creates a directory? |
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Definition
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| Which command browses or pages through a text file? |
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Definition
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| Which command moves or renames files? |
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Definition
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| Which command runs a command at low priority? |
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Definition
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Term
| Which command makes commands immune to hangups and quits? |
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Definition
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Term
| Which command changes the login password and password attributes? |
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Definition
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Term
| Which command displays files one page at a time? |
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Definition
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Term
| Which command displays the present working directory name? |
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Definition
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Term
| Which command removes files from directories? |
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Definition
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Term
| Which command removes a directroy? |
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Term
| Which command stores and retrieves files from an archive file, normally a tape device? |
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Definition
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Term
| Which command displays top CPU processes? |
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Term
| Which command displays who is logged on the system? |
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Definition
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Term
| Which command compares two files? |
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Definition
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Term
| Which command compresses or expands files? |
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Definition
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Term
| Which command prints group membership of user? |
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Definition
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Term
| Which command executes commands at a later time? |
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Definition
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Term
| Which command converts a file while copying it? |
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| Which command reads one line at a time? |
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