Which command does an engineer use to set read/write/execute access on a folder for everyone...

The chmod command is used in Unix and Unix-like operating systems to change the file system modes of files and directories. The modes determine the permissions granted to the owner, group, and others. The command chmod 777 sets the mode of the file to be readable, writable, and executable by everyone. The number 777 corresponds to the permissions rwxrwxrwx, where r is read, w is write, and x is execute. This command is generally not recommended for use on a production system as it gives full permissions to every user, which can pose a significant security risk1.