computer-science-unix Related Question Answers

101. Which of following commands is used for an automatic reminder service?






102. Which command allows you to view your file 24 lines at a time?






103. Which of the following special shell variables is used to process number of the current shell?






104. Which option is used with cmp command to give a detailed list of the byte number and the differing bytes in octal for each character that differs in both the files?






105. Which command is used with vi editor scroll half page backward?






106. Which command is used with vi editor to move cursor forward to first occurrence of character 'ch' in the current line?






107. Which of the following keys is used to delete the character beneath the cursor?





108. Which command is used to assign only read permission to all three categories of the file 'note'?






109. Which command will be used with vi editor to append text at end of line?




110. The first set of the three permissions (rw) pertains to the owner of the file, indicating that the owner has






111. Which of the following commands is used to save the output of the who command in a file named user.lst, as well as display it?






112. Which of the following shell's wildcards are used to match any number of characters including none?






113. The command used to remove the directory is;






114. Which symbol will be used with grep command to match the pattern pat at the end of a line?






115. Which command is used to display all the lines with the string 'sales' from the file empl.lst?






116. Which of the following commands is not the vi Input mode command?






117. Which of the following commands is used to remove files?






118. Which command is used with vi editor to save file and remain in the editing mode?






119. You can append to a file instead of overwriting by using the






120. The [line number G] key allows you






121. Which of the following commands is used to have a two-way communication with any person who is currently logged in?






122. Which command is used with vi editor to move the cursor to the left?






123. Which of command is used to copy a file?






124. The special shell variable $ is used






125. The cat command is used to






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