Unix Which command is used to make all files and sub-directories in the directory (progs) executable by all users? chmod -R 222 progs chmod -R a+x progs chmod -x a+x progs chmod -1 a+x progs chmod -R 222 progs chmod -R a+x progs chmod -x a+x progs chmod -1 a+x progs ANSWER DOWNLOAD EXAMIANS APP
Unix The command that can be used to restrict incoming messages to a user is None of these halt sleep mesg grep None of these halt sleep mesg grep ANSWER DOWNLOAD EXAMIANS APP
Unix Which of the following special shell variables is used to process number of the last background job? $0 $! $# $* $0 $! $# $* ANSWER DOWNLOAD EXAMIANS APP
Unix You can append to a file instead of overwriting by using the >> symbols None of these > symbols < symbols >> symbols None of these > symbols < symbols ANSWER DOWNLOAD EXAMIANS APP
Unix Which of the following shell's wildcards are used to match any number of characters including none? [ijk] None of these [!ijk] * ? [ijk] None of these [!ijk] * ? ANSWER DOWNLOAD EXAMIANS APP
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
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