Unix Which of the following special shell variables is used to process number of the current shell? None of these $* $$ $! None of these $* $$ $! ANSWER DOWNLOAD EXAMIANS APP
Unix The command that can be used to restrict incoming messages to a user is grep None of these sleep mesg halt grep None of these sleep mesg halt ANSWER DOWNLOAD EXAMIANS APP
Unix Which command is used to assign only read permission to all three categories of the file 'note'? chmod go+r note chmod u+r,g+r,o-x note chmod a-rw None of these chmod ugo=r note chmod go+r note chmod u+r,g+r,o-x note chmod a-rw None of these chmod ugo=r note ANSWER DOWNLOAD EXAMIANS APP
Unix Which of the following command is used to count just the number of lines contained in a file? wc -w wc -l wc -r wc -c None of these wc -w wc -l wc -r wc -c None of these ANSWER DOWNLOAD EXAMIANS APP
Unix Which command is used to delete all files in the current directory as well as all files and sub-directories in its subdirectories? rm -r * rm * rm all None of these rm *.* rm -r * rm * rm all None of these rm *.* ANSWER DOWNLOAD EXAMIANS APP
Unix Which command is used to copy a file wb with the same name from the programs directory to the misc directory? None of these tar programs/wb misc/wb copy a:programs/wb b:misc/wb cp programs/wb misc copy programs/wb misc/wb None of these tar programs/wb misc/wb copy a:programs/wb b:misc/wb cp programs/wb misc copy programs/wb misc/wb ANSWER DOWNLOAD EXAMIANS APP
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