| POSIX standard, no conflicting purposes |
| Non-standard, no conflicting purposes |
| Conflicting purposes |
| -@ | Solaris |
| -a | BusyBox, DragonFly, FreeBSD, Minix, NetBSD, OpenBSD |
| -d | BusyBox |
| -f | POSIX, BusyBox, DragonFly, FreeBSD, Minix, NetBSD, OpenBSD, Solaris |
| -H | POSIX, BusyBox, DragonFly, FreeBSD, Minix, NetBSD, OpenBSD, Solaris |
| -i | POSIX, BusyBox, DragonFly, FreeBSD, Minix, NetBSD, OpenBSD, Solaris |
| -l | BusyBox, DragonFly, FreeBSD, Minix, NetBSD |
| -L | POSIX, BusyBox, DragonFly, FreeBSD, Minix, NetBSD, OpenBSD, Solaris |
| -n | DragonFly, FreeBSD |
| -N | Minix, NetBSD |
| -p | POSIX, BusyBox, DragonFly, FreeBSD, Minix, NetBSD, OpenBSD |
| -P | POSIX, BusyBox, DragonFly, FreeBSD, Minix, NetBSD, OpenBSD, Solaris |
| -r | BusyBox, Solaris |
| -R | POSIX, BusyBox, DragonFly, FreeBSD, Minix, NetBSD, OpenBSD, Solaris |
| -s | BusyBox, FreeBSD |
| -v | DragonFly, FreeBSD, Minix, NetBSD, OpenBSD |
| -x | DragonFly, FreeBSD |
| -a | POSIX |
| -acl | FreeBSD |
| -amin | FreeBSD |
| -anewer | FreeBSD |
| -atime | FreeBSD |
| -atime | POSIX |
| -Bmin | FreeBSD |
| -Bnewer | FreeBSD |
| -Btime | FreeBSD |
| -cmin | FreeBSD |
| -cnewer | FreeBSD |
| -ctime | FreeBSD |
| -ctime | POSIX |
| -d | FreeBSD |
| -d | FreeBSD |
| -delete | FreeBSD |
| -depth | POSIX |
| -E | FreeBSD |
| -empty | FreeBSD |
| -exec | POSIX |
| -execdir | FreeBSD |
| -false | FreeBSD |
| -flags | FreeBSD |
| -fstype | FreeBSD |
| -gid | FreeBSD |
| -group | POSIX |
| -H | POSIX |
| -ignore_readdir_race | FreeBSD |
| -ilname | FreeBSD |
| -iname | FreeBSD |
| -inum | FreeBSD |
| -ipath | FreeBSD |
| -iregex | FreeBSD |
| -iwholename | FreeBSD |
| -L | POSIX |
| -links | POSIX |
| -lname | FreeBSD |
| -ls | FreeBSD |
| -maxdepth | FreeBSD |
| -mindepth | FreeBSD |
| -mmin | FreeBSD |
| -mnewer | FreeBSD |
| -mount | FreeBSD |
| -mtime | POSIX |
| -name | POSIX |
| -newer | POSIX |
| -nogroup | POSIX |
| -noignore_readdir_race | FreeBSD |
| -noleaf | FreeBSD |
| -not | FreeBSD |
| -nouser | POSIX |
| -o | POSIX |
| -ok | POSIX |
| -okdir | FreeBSD |
| -P | FreeBSD |
| -path | POSIX |
| -perm | POSIX |
| POSIX | |
| -print0 | FreeBSD |
| -prune | POSIX |
| -quit | FreeBSD |
| -regex | FreeBSD |
| -s | FreeBSD |
| -samefile | FreeBSD |
| -size | POSIX |
| -sparse | FreeBSD |
| -true | FreeBSD |
| -type | POSIX |
| -uid | FreeBSD |
| -user | POSIX |
| -wholename | FreeBSD |
| -x | FreeBSD |
| -X | FreeBSD |
| -xdev | POSIX |
| --bare | git |
| --exec-path | git |
| --git-dir | git |
| --help | git |
| --html-path | git |
| --info-path | git |
| --man-path | git |
| --namespace | git |
| --no-replace-objects | git |
| --super-prefix | git |
| --version | git |
| --work-tree | git |
| -c | git |
| -C | git |
| -p | git |
| -P | git |
| -c | BusyBox, DragonFly, FreeBSD, Minix, NetBSD |
| -n | POSIX, BusyBox, DragonFly, FreeBSD, Minix, NetBSD, OpenBSD, Solaris |
| -q | BusyBox, DragonFly, Minix, NetBSD |
| -v | BusyBox, DragonFly, Minix, NetBSD |
| -1 | POSIX |
| -a | POSIX |
| -A | POSIX |
| -b | GNU |
| -B | GNU |
| -c | POSIX |
| -C | POSIX |
| -d | POSIX |
| -D | GNU |
| -f | POSIX |
| -F | POSIX |
| -g | POSIX |
| -G | GNU |
| -h | GNU |
| -H | POSIX |
| -i | POSIX |
| -I | GNU |
| -k | POSIX |
| -l | POSIX |
| -L | POSIX |
| -m | POSIX |
| -n | POSIX |
| -N | GNU |
| -o | POSIX |
| -p | POSIX |
| -q | POSIX |
| -Q | POSIX |
| -r | POSIX |
| -R | POSIX |
| -s | POSIX |
| -S | POSIX |
| -t | POSIX |
| -T | GNU |
| -u | POSIX |
| -U | GNU |
| -v | GNU |
| -w | GNU |
| -x | POSIX |
| -X | GNU |
| -Z | GNU |
| -4 | OpenBSD |
| -6 | OpenBSD |
| -c | OpenBSD |
| -C | OpenBSD |
| -d | OpenBSD |
| -D | OpenBSD |
| -e | netcat-traditional, OpenBSD |
| -F | OpenBSD |
| -h | OpenBSD |
| -H | OpenBSD |
| -i | OpenBSD |
| -I | OpenBSD |
| -k | OpenBSD |
| -K | OpenBSD |
| -l | OpenBSD |
| -m | OpenBSD |
| -M | OpenBSD |
| -n | OpenBSD |
| -N | OpenBSD |
| -o | OpenBSD |
| -O | OpenBSD |
| -p | OpenBSD |
| -P | OpenBSD |
| -r | OpenBSD |
| -R | OpenBSD |
| -s | OpenBSD |
| -S | OpenBSD |
| -t | OpenBSD |
| -T | OpenBSD |
| -u | OpenBSD |
| -U | OpenBSD |
| -v | OpenBSD |
| -V | OpenBSD |
| -w | OpenBSD |
| -W | OpenBSD |
| -x | OpenBSD |
| -X | OpenBSD |
| -z | OpenBSD |
| -Z | OpenBSD |
| -b | POSIX |
| -c | POSIX |
| -C | POSIX |
| -d | POSIX |
| -f | POSIX |
| -g | GNU |
| -h | GNU |
| -i | POSIX |
| -k | POSIX |
| -m | POSIX |
| -M | GNU |
| -n | POSIX |
| -o | POSIX |
| -r | POSIX |
| -R | GNU |
| -s | GNU |
| -S | GNU |
| -t | POSIX |
| -T | GNU |
| -u | POSIX |
| -V | GNU |
| -z | GNU |
| -A | GNU |
| -b | DragonFly, FreeBSD, OpenBSD |
| -c | POSIX, BusyBox |
| -e | GNU |
| -E | GNU |
| -f | POSIX, BusyBox |
| -F | DragonFly, FreeBSD, NetBSD |
| -n | POSIX, BusyBox |
| -q | BusyBox, DragonFly, FreeBSD |
| -r | DragonFly, FreeBSD, OpenBSD |
| -s | BusyBox, GNU |
| -t | GNU |
| -T | GNU |
| -u | GNU |
| -v | BusyBox, DragonFly |
| -0 | DragonFly, NetBSD |
| -E | POSIX, NetBSD |
| -I | POSIX, NetBSD |
| -J | DragonFly, NetBSD |
| -L | POSIX, NetBSD |
| -n | POSIX, DragonFly, NetBSD |
| -o | DragonFly, NetBSD |
| -p | POSIX, NetBSD |
| -P | DragonFly, NetBSD |
| -r | DragonFly, NetBSD |
| -R | DragonFly, NetBSD |
| -s | POSIX, NetBSD |
| -S | DragonFly, NetBSD |
| -t | POSIX, NetBSD |
| -x | POSIX, NetBSD |