81. Which of the following commands is used to remove files with confirmation prompt from the user file system which have neither been accessed nor modified i the last one year?
82. Which of the following commands is used to summarize the disk usage?
83. Which command is used to sort the lines of data in a file in alphabetical order?
84. If a file has read and write permissions for the owner, then the octal representation of the permissions will be
85. Which command is used to copy a file wb with the same name from the programs directory to the misc directory?
86. Which is the earliest and most widely used shell that came with the UNIX system?
87. The seventh field of /etc/password is
88. Which command is used to display the end of the file?
89. Which command is used to create a directory?
90. Which command is used to display the device name of the terminal you are using?
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