RHCSA Exam Study Guide with Complete Solutions

RHCSA Exam Study Guide with Complete Solutions break-in process - Answer️️ - inserted at the end of the line starting with "linux16" mount -o rw,remount /sysroot chroot /sysroot passwd touch /.autorelabel exit systemctl isolate t rename a file - Answer️️ -mv original newname execute multiple separate commands in a single line - Answer️️ -first command; second command brace expansion - Answer️️ -touch file{1..9} output redirection into file - Answer️️ -command destination append output to existing file - Answer️️ -command destination stdout redirect - Answer️️ -command 1 destination stderr redirect - Answer️️ -command 2 destination ©SOPHIABENNET@2024/2025 Tuesday, August 20, 2024 10:21 AM 2 how can you tell if a user has a non-login shell? - Answer️️ - /sbin/nologin homedir location in /etc/passwd how do you impersonate root but log your actions as your current user account? - Answer️️ -sudo -i what command would you use to enable, restart, mask a service? - Answer️️ -systemctl shows currently logged in users - Answer️️ -w what would you run to change password expiration policies for an individual user? - Answer️️ -chage what would you run to move a single file from one host to another user's homedir on a remote machine? - Answer️️ -scp localfile user@remotehost:~/ you want to make sure members of the wheel group can run root commands as themselves (not root.) where do you go? - Answer️️ -visudo how do you make an alias in bash? - Answer️️ -alias=command in .bashrc in homedir make a directory. - Answer️️ -mkdir make an empty file. - Answer️️ -touch remove a directory and its contents recursively. - Answer️️ -rm rf ©SOPHIABENNET@2024/2025 Tuesday, August 20, 2024 10:21 AM 3 change a directory to be owned by a group. - Answer️️ -chown :groupname directory make a directory collaborative to a group with rwx for owner and group and no access for others. - Answer️️ -chmod 2770 file make a file with rwxr-x-wx - Answer️️ -chmod 753 file change wd to root filesystem - Answer️️ -cd / make a child directory and a parent directory in a single command. - Answer️️ -mkdir -p /parent/child add a sticky bit. - Answer️️ -chmod +t dir what's a sticky bit? - Answer️️ -users can't delete files in a directory that they don't own. oh no, the network broke. add a new connection. - Answer️️ -nmcli con and tab your way to victory. don't forget to reload the config after specifying dns, then enable the interface. or use nmtui. don't forget the subnet mask in either case or it will for sure break. show your ip address - Answer️️ -ip addr schedule an hourly job. - Answer️️ -write the script and put it in /etc/y, then restart crond schedule a one-time job in the future. - Answer️️ -command | at timespec ©SOPHIABENNET@2024/2025 Tuesday, August 20, 2024 10:21 AM 4 did you set a password for all the users you just created? go check and see if they're encrypted. - Answer️️ -cat /etc/shadow you want to view something and search it, but not edit it on accident. - Answer️️ -less filename change my timezone. use a big text interface with a list of continents. - Answer️️ -tzselect what's the easiest way to tell if you're already using ntp? - Answer️️ - timedatectl you've got a custom ntp server to add. where do you put it? - Answe