Unix Which of the following command is used to count just the number of lines contained in a file? wc -c wc -r None of these wc -w wc -l wc -c wc -r None of these wc -w wc -l ANSWER DOWNLOAD EXAMIANS APP
Unix Which command is used to extract specific columns from the file? cat cut paste grep cat cut paste grep ANSWER DOWNLOAD EXAMIANS APP
Unix The command that can be used to restrict incoming messages to a user is sleep halt mesg grep None of these sleep halt mesg grep None of these ANSWER DOWNLOAD EXAMIANS APP
Unix Which command is used to assign only read permission to all three categories of the file 'note'? chmod a-rw chmod ugo=r note chmod u+r,g+r,o-x note None of these chmod go+r note chmod a-rw chmod ugo=r note chmod u+r,g+r,o-x note None of these chmod go+r note ANSWER DOWNLOAD EXAMIANS APP
Unix Which command is used to remove a directory? rmdir dldir rd rdir rmdir dldir rd rdir ANSWER DOWNLOAD EXAMIANS APP
Unix Which command is used to concatenate all files beginning with the string 'emp' and followed by a non-numeric characters? cat emp[x-z] cat emp[!0-9] more [emp][!0-9] cat emp[a-z] cat emp[x-z] cat emp[!0-9] more [emp][!0-9] cat emp[a-z] ANSWER DOWNLOAD EXAMIANS APP
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