81. Which one of the following command is used to replace a single character with many?
82. Shell enables one or more arguments to be obtained from the standard output of another command. This feature is called . . . . . . . .
83. Which operator is used in vi to filter text?
84. Shell scripts are executed in a separate child shell process.
85. Which command will be used for selecting lines 3 to 10 from emp.lst?
86. What does the following command do?
$ echo *
$ echo *87. For looping in a list, . . . . . . . . is used.
88. Which of the following command will remove the file named * ?
89. Which option is used with ps command to list system processes?
90. Which of the following command will be used if we want to abort editing and quit the editor even if the buffer has been changed and not saved?
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