If two days ago the simplified version of cheat sheet does not help you out. Maybe below this web site that provides over 350+ commands line should be sufficient enough to cover your basic need to Linux.

The commands line are categorized into below categories:

• System information
• Shutdown, Restart of a system and Logout
• Files and Directory
• File search
• Mounting a Filesystem
• Disk Space
• Users and Groups
• Permits on File – use "+" to set permissions and "-" to remove
• Special Attributes on file – use "+" to set permissions and "-" to remove
• Archives and compressed files
• RPM Packages – Fedora, Red Hat and like
• YUM packages updater – Fedora, RedHat and like
• DEB packages – Debian, Ubuntu and like
• APT packages updater – Debian, Ubuntu e like
• View file content
• Text Manipulation
• Character set and Format file conversion
• Filesystem Analysis
• Format a Filesystem
• SWAP filesystem
• Backup
• CDROM
• Networking – LAN and WiFi
• Microsoft Windows networks – SAMBA
• IPTABLES – firewall
• Monitoring and debugging
• Other useful commands

Source: linuxguide.it