51. The sort order can be reversed using . . . . . . . . option.
52. To perform decision depending on the fulfillment of certain criteria, . . . . . . . . is used.
53. We can use relative addressing while executing previous commands.
54. The >> symbol is used to overwrite the existing file if it exists.
55. Which command saves one copy of character stream in a file and store the other to standard output?
56. If the file is write-protected and the directory has to write permission then we cannot delete the file.
57. To yank from current cursor up to first occurrence of string str in reverse direction, we can use:
58. userdel is used for removing users from the system.
59. Which of the following signals are generated from the hardware?
60. To append contents of buffer to file01, we can use . . . . . . . .
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