RHCSA, EX200, Red Hat Certified Systems Admin
Exam 100% Verified 2025
How to redirect errors to a file? - ANSWER command 2> <$filename>
2> will over write the file and 2>> will append
How to send both standard error and output to a file and have no outputs show on
screen? - ANSWER &>
How to send standard error into standard output? - ANSWER 2 > &1
how to grep opposites? - ANSWER grep -v
select all that do not start with l,i,n,u,x - ANSWER grep -v '[^linux] '
returns everything not beginning with the letters: l, i, n, u, x
what does? mean in regex - ANSWER character before is optional
what does + mean in regex - ANSWER preceding item is matched 1 or more times
what is scp? - ANSWER secure copy protocol. do it over ssh. encrypted. old way to
transfer. can send commands to the other server.
what is sftp? - ANSWER secure file transfer protocol. or ssh file transfer protocol. can
connect and live inside the other server.
can type get <$filename> to get copy the files back
, what is tar -cvf - ANSWER create, verbose, use this archive name.
how to view the contents of an archived file - ANSWER tar -tf
what is tar -xzvf - ANSWER eXtract gZip Verbosely Filename
star command. archive utility. not default. need to yum install. - ANSWER big data sets
and files.
what is apropos and mandb - ANSWER apropos searches the titles of man pages for
this key.
man page is not indexed and cached so we need to run mandb and it'll be recorded.
how to see all the commands if stuck - ANSWER info coreutils
how to yum install the locate command? - ANSWER yum install mlocate make sure to
updatedb
how to find stuff - ANSWER rpm -qd <$packageName>
whereis
which
man
info
things are in /usr/share/doc
/usr/share/info
/usr/share/man
locate and find - ANSWER package is mlocate. install httpd also.
Exam 100% Verified 2025
How to redirect errors to a file? - ANSWER command 2> <$filename>
2> will over write the file and 2>> will append
How to send both standard error and output to a file and have no outputs show on
screen? - ANSWER &>
How to send standard error into standard output? - ANSWER 2 > &1
how to grep opposites? - ANSWER grep -v
select all that do not start with l,i,n,u,x - ANSWER grep -v '[^linux] '
returns everything not beginning with the letters: l, i, n, u, x
what does? mean in regex - ANSWER character before is optional
what does + mean in regex - ANSWER preceding item is matched 1 or more times
what is scp? - ANSWER secure copy protocol. do it over ssh. encrypted. old way to
transfer. can send commands to the other server.
what is sftp? - ANSWER secure file transfer protocol. or ssh file transfer protocol. can
connect and live inside the other server.
can type get <$filename> to get copy the files back
, what is tar -cvf - ANSWER create, verbose, use this archive name.
how to view the contents of an archived file - ANSWER tar -tf
what is tar -xzvf - ANSWER eXtract gZip Verbosely Filename
star command. archive utility. not default. need to yum install. - ANSWER big data sets
and files.
what is apropos and mandb - ANSWER apropos searches the titles of man pages for
this key.
man page is not indexed and cached so we need to run mandb and it'll be recorded.
how to see all the commands if stuck - ANSWER info coreutils
how to yum install the locate command? - ANSWER yum install mlocate make sure to
updatedb
how to find stuff - ANSWER rpm -qd <$packageName>
whereis
which
man
info
things are in /usr/share/doc
/usr/share/info
/usr/share/man
locate and find - ANSWER package is mlocate. install httpd also.
