81. The write permission for a directory determines that . . . . . . . .
82. The variable assignment as x = 10 (whitespace on both sides of =) will work if we are not using C shell?
83. The string to be worked upon is placed on the left of the colon when using expr string handling function.
84. awk has some built-in functions which are used for arithmetic and string operations.
85. vi editor stores most of its information in a hidden swap file.
86. Which command does not terminates unless we log out of the system?
87. Which of the following system calls performs the action of cd command?
88. To create an archive named abc.tar consisting of two files, file01 and file02, which of the following command will be used?
89. Which of the following shell doesn't support ! symbol for negating the character class?
90. What is the default mode of vi editor?
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