71. To restore a number of recent deletions, numbered buffers are used.
72. Options are also arguments but begin with a -.
73. Below command will change the case of text from lower to upper.
head -n 3 emp.lst | tr '[a-z]' '[A-Z]'
head -n 3 emp.lst | tr '[a-z]' '[A-Z]'
74. Which of the following is used with :set to customize vi to ignore case in pattern searches?
75. Which of the following is not a valid operator-command combination?
76. For what purpose bc command is used?
77. To display the last five used commands, which one of the following commands is used (in bash shell)?
78. Environment variable names can be defined only in uppercase.
79. Which command is used for reporting free space on the disk?
80. Which one of the following command is used for searching for a pattern in one or more file(s)?
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