The Linux manual,
without the squint.
4,355 manual pages from Debian stable, with 13,828 options pulled out of the prose and into a table you can filter.
4,355 pages13,828 options8 sections68 packages
Most looked up
All commands →df(1)report file system space usage18 optionsgrep(1)print lines that match patterns47 optionssed(1)stream editor for filtering and transforming text15 optionsls(1)list directory contents60 optionssystemctl(1)Control the systemd system and service manager63 optionscp(1)copy files and directories36 optionsjournalctl(1)Print log entries from the systemd journal62 optionsxargs(1)build and execute command lines from standard input21 optionsfind(1)search for files in a directory hierarchy94 optionstar(1)an archiving utility155 optionscrontab(5)tables for driving cronlsof(8)list open files36 optionstop(1)display Linux processes18 optionsssh(1)OpenSSH remote login client31 optionscurl(1)transfer a URL269 optionschmod(1)change file mode bits14 optionsps(1)report a snapshot of the current processes.58 optionsgawk(1)pattern scanning and processing language28 optionsmount(8)mount a filesystem33 optionsdmesg(1)print or control the kernel ring buffer32 optionsrsync(1)a fast, versatile, remote (and local) file-copying tool154 optionswget(1)The non-interactive network downloader.202 optionsssh-keygen(1)OpenSSH authentication key utility26 optionslsblk(8)list block devices40 options