Q.1
Which command is used for renaming files in Unix?
  • a) rename
  • b) move
  • c) mv
  • d) cp
Q.2
Which command is used for comparing two files?
  • a) comp
  • b) cmp
  • c) comm
  • d) diff
Q.3
Which Unix command is used for counting words, lines, and characters in a file?
  • a) wc
  • b) man
  • c) count
  • d) diff
Q.4
In UNIX, which command is used to change the permissions of a file?
  • a) chown
  • b) chgrp
  • c) chmod
  • d) ch
Q.5
Which symbol is used to change permissions for hidden files in Unix?
  • a) *
  • b) $
  • c) &
  • d) .
Q.6
Which command is used for saving and quitting the vi editor simultaneously?
  • a) ‘:x’
  • b) :f
  • c) :q
  • d) :w
Q.7
How can we escape to the UNIX shell without quitting vi editor?
  • a) using ‘:sh’ command and using ctrl-Z
  • b) using ‘:sh’ command
  • c) using ctrl-Z
  • d) using ctrl-D
Q.8
For creating and removing directories, which of the following system calls are used?
  • a) mkdir and rmdir
  • b) rmdir and chown
  • c) chdir and chown
  • d) mkdir and chdir
Q.9
Which of the following files are known as special files in Unix?
  • a) /dev/null
  • b) sample.txt
  • c) /dev/null and /dev/tty
  • d) /dev/tty
Q.10
What is the output of the following Unix command? $ wc -c *.c
  • a) size of each .c file
  • b) total size of .c files
  • c) erroneous
  • d) undefined
Q.11
In Unix, for what purpose bc command is used?
  • a) for copying files
  • b) as a process table viewer
  • c) as an editor
  • d) as a calculator
Q.12
Which process is immediately set up by the kernel when we log on to a Unix system?
  • a) System
  • b) bash
  • c) shell
  • d) parent
Q.13
Which command shows some attributes of a process?
  • a) HOME
  • b) ps
  • c) $$
  • d) pid
Q.14
Which of the following system call is used for creating a new process in Unix?
  • a) new
  • b) wait
  • c) read
  • d) fork
Q.15
Which of the following command is used to create a child shell?
  • a) sh
  • b) env
  • c) wait
  • d) fork
Q.16
Which Unix command is used for locating files?
  • a) type
  • b) loc
  • c) find
  • d) search
Q.17
Which command is used for preparing a file for printing?
  • a) pr
  • b) print
  • c) cat
  • d) cd
Q.18
Which command is used for sorting a file on specified fields?
  • a) pr
  • b) cut
  • c) tail
  • d) sort
Q.19
Which Unix command is used for locating repeated and non-repeated lines?
  • a) cut
  • b) paste
  • c) uniq
  • d) sort
Q.20
Which command is used for translating characters?
  • a) paste
  • b) tr
  • c) trans
  • d) sort
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