41. Which option is used when we've to sort files containing only numbers?
42. For splitting a line or expression into fields, . . . . . . . . is used.
43. -o operator represents the OR condition.
44. What will the result when we evaluate this statement?
$ directory=’pwd’=`pwd`
$ directory=’pwd’=`pwd`45. ls -s prints the allocated file size in blocks.
46. . . . . . . . . command is the appropriate way to interrupt a program.
47. Which process is immediately set up by the kernel when we log on to a UNIX system?
48. How can we specify more than one command in the command line at the same time?
49. In UNIX there are . . . . . . . . major types of shells.
50. Which of the following system call is used for closing a file?
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