71. Which of the following commands is used to get directory one level up?
72. Which of the following commands is used to count the total number of lines, words, and characters contained in a file.
73. Which command is used to delete all files in the current directory as well as all files and sub-directories in its subdirectories?
74. Which of the following commands is used to change the working directory?
75. Which of the following commands is used to view your file 24 lines at a time?
76. Which shell's wild-cards is used to match a single character?
77. In Bourne shell, which file sets the Unix environment for the user when the logs into his HOME directory.
78. Which command is used to copy the three files wb, collect and mon into the misc directory, under the same, when you were currently in the programs directory?
79. The command chmod 761 note is equivalent to
80. The commonly used UNIX commands like date, ls, cat, etc. are stored in
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