To assign execute permission to the user (owner) for a file named file01.txt, which of the following command will be used?
A. chmod u+r file01.txt
B. chmod u+w file01.txt
C. chmod u-x file01.txt
D. chmod u+x file01.txt
Answer: Option D
A. chmod u+r file01.txt
B. chmod u+w file01.txt
C. chmod u-x file01.txt
D. chmod u+x file01.txt
Answer: Option D
Which symbol will be used with grep command to match the pattern pat at the beginning of a line?
A. ^pat
B. $pat
C. pat$
D. pat^
E. None of the above
Which command is used to sort the lines of data in a file in reverse order
A. sort
B. sh
C. st
D. sort -r
E. None of the above
Which command is used to display the top of the file?
A. cat
B. head
C. more
D. grep
E. None of the above
A. cp chap?? progs
B. cp chap* progs
C. cp chap[12] /progs/*.*
D. cp chap?? /progs/*
E. None of the above
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