git的使用:
usage: git [--version] [--help] [-C <path>] [-c name=value]
[--exec-path[=<path>]] [--html-path] [--man-path] [--info-path]
[-p | --paginate | --no-pager] [--no-replace-objects] [--bare]
[--git-dir=<path>] [--work-tree=<path>] [--namespace=<name>]
<command> [<args>]
available git commands in '/usr/libexec/git-core'
add checkout cvsexportcommit for-each-ref init-db merge-recursive prune-packed remote-testsvn show-branch update-ref
add--interactive checkout-index cvsimport format-patch instaweb merge-resolve pull repack show-index update-server-info
am cherry cvsserver fsck interpret-trailers merge-subtree push replace show-ref upload-archive
annotate cherry-pick daemon fsck-objects log merge-tree quiltimport repo-config stage upload-pack
apply citool describe gc lost-found mergetool read-tree request-pull stash var
archimport clean diff get-tar-commit-id ls-files mktag rebase rerere status verify-commit
archive clone diff-files grep ls-remote mktree receive-pack reset stripspace verify-pack
bisect column diff-index gui ls-tree mv reflog rev-list submodule verify-tag
bisect--helper commit diff-tree gui--askpass mailinfo name-rev relink rev-parse submodule--helper web--browse
blame commit-tree difftool hash-object mailsplit notes remote revert subtree whatchanged
branch config difftool--helper help merge p4 remote-ext rm svn worktree
bundle count-objects fast-export http-backend merge-base pack-objects remote-fd send-email symbolic-ref write-tree
cat-file credential fast-import http-fetch merge-file pack-redundant remote-ftp send-pack tag
check-attr credential-cache fetch http-push merge-index pack-refs remote-ftps sh-i18n--envsubst tar-tree
check-ignore credential-cache--daemon fetch-pack imap-send merge-octopus patch-id remote-http shell unpack-file
check-mailmap credential-gnome-keyring filter-branch index-pack merge-one-file peek-remote remote-https shortlog unpack-objects
check-ref-format credential-store fmt-merge-msg init merge-ours prune remote-testpy show update-index
'git help -a' and 'git help -g' list available subcommands and some
concept guides. See 'git help <command>' or 'git help <concept>'
to read about a specific subcommand or concept.