51. System time comprises . . . . . . . . components.
52. Which of the following is not true about UNIX?
53. One of the most important features of vi editor is . . . . . . . .
54. Which command is used by the user to change their login password in UNIX?
55. S_IFxxx macros are used for checking the file types.
56. ex mode is used for what purpose?
57. For customizing vi, which of the following command is used?
58. Which option is used by vi editor to open a file in read mode only?
59. If we want to link files across the file systems, we have to use only soft links.
60. Both exit and _exit system call share an identical syntax.
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