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- Subject
- Basic of linux unixsoftware-engineering-mcqs › basic-of-linux-unix
- Published
- 9 Apr 2019
- Last updated
- 28 May 2026
Explanation
In shell scripting, $$ holds the process ID of the current shell. $! refers to the last background process ID, $0 is the script name, and $* contains all positional parameters.
More Basic of linux unix MCQs
Practice related questions from the same subject.
- 1.Which octal notation corresponds to the command chmod ugo+rw note?
- 2.The initial trio of permissions (rw) assigned to a file's owner signifies that the owner is granted which of the following rights?
- 3.Which symbol allows you to add content to the end of a file without erasing its current contents?
- 4.Which wildcard character in a shell matches zero or more characters of any kind?
- 5.Which command terminates all processes owned by you on the system except for the login shell?
- 6.Which command is used to delete files in a command-line interface?
- 7.Identify the command that is not used for communication purposes:
- 8.Which command allows you to view the active services on an NFS server?
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