61. We can also duplicate the file descriptor using . . . . . . . .
62. Which one of the following command is used for replacing | with : globally?
63. Which option is used for displaying the line numbers containing the pattern along with lines?
64. The -a option when used with ps command lists processes of all users but doesn't display the system processes.
65. To remove all other windows except the current one, which of the following command is used?
66. The shell waits for the command to complete and normally can't do any work while the command is executing.
67. To add elements to the right side of the array . . . . . . . . function is used.
68. When a string is used for numeral computations, perl converts it into . . . . . . . .
69. Address space of a process is virtual.
70. Which of the following symbol is used with chmod to assign permission to a file?
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