migrate git.txt + flatten hierarchy in SUMMARY

3 files changed, 136 insertions, 18 deletions

diff --git a/src/SUMMARY.md b/src/SUMMARY.md
index d4ee8d9..b328af9 100644
--- a/src/SUMMARY.md
+++ b/src/SUMMARY.md
@@ -1,22 +1,19 @@
 # Summary
 
+- [git](./git.md)
 - [gdb](./gdb.md)
-- [debug & trace](./_ghost.md)
-    - [strace](./strace.md)
-    - [lsof](./lsof.md)
-    - [pidstat](./pidstat.md)
-    - [time](./time.md)
-    - [pmap](./pmap.md)
-    - [pstack](./pstack.md)
-    - [perf](./perf.md)
-    - [OProfile](./oprofile.md)
-- [binary](./_ghost.md)
-    - [od](./od.md)
-    - [xxd](./xxd.md)
-    - [readelf](./readelf.md)
-    - [objdump](./objdump.md)
-    - [nm](./nm.md)
-    - [c++filt](./c++filt.md)
-
-
+- [strace](./strace.md)
+- [lsof](./lsof.md)
+- [pidstat](./pidstat.md)
+- [time](./time.md)
+- [pmap](./pmap.md)
+- [pstack](./pstack.md)
+- [perf](./perf.md)
+- [OProfile](./oprofile.md)
+- [od](./od.md)
+- [xxd](./xxd.md)
+- [readelf](./readelf.md)
+- [objdump](./objdump.md)
+- [nm](./nm.md)
+- [c++filt](./c++filt.md)
 
diff --git a/src/_ghost.md b/src/_ghost.md
deleted file mode 100644
index e69de29..0000000
--- a/src/_ghost.md
+++ /dev/null
diff --git a/src/git.md b/src/git.md
new file mode 100644
index 0000000..8036303
--- /dev/null
+++ b/src/git.md
@@ -0,0 +1,121 @@
+# git(1)
+
+## Misc
+```markdown
+  git add -p [<file>] ............ partial staging (interactive)
+```
+
+## remote
+```markdown
+  git remote -v .................. list remotes verbose (with URLs)
+  git remote show [-n] <remote> .. list info for <remote> (like remote HEAD,
+                                   remote branches, tracking mapping)
+```
+
+## branching
+```markdown
+  git branch [-a] ................ list available branches; -a to include
+                                   remote branches
+  git branch -vv ................. list branch & annotate with head sha1 &
+                                   remote tracking branch
+  git branch <bname> ............. create branch with name <bname>
+  git checkout <bname> ........... switch to branch with name <bname>
+  git push -u origin <rbname> .... push branch to origin (or other remote), and
+                                   setup <rbname> as tracking branch
+```
+
+## resetting
+```markdown
+  git reset [opt] <ref|commit>
+    opt:
+      --mixed .................... resets index, but not working tree
+      --hard ..................... matches the working tree and index to that
+                                   of the tree being switched to any changes to
+                                   tracked files in the working tree since
+                                   <commit> are lost
+  git reset HEAD <file> .......... remove file from staging
+  git reset --soft HEAD~1 ........ delete most recent commit but keep work
+  git reset --hard HEAD~1 ........ delete most recent commit and delete work
+```
+
+## tags
+```markdown
+  git tag -a <tname> -m "descr" ........ creates an annotated tag (full object
+                                         containing tagger, date, ...)
+  git tag -l ........................... list available tags
+  git checkout tag/<tname> ............. checkout specific tag
+  git checkout tag/<tname> -b <bname> .. checkout specific tag in a new branch
+```
+
+## diff
+```markdown
+  git diff HEAD:<fname> origin/HEAD:<fname> ... diff files for different refs
+  git diff -U$(wc -l <fname>) <fname> ......... shows complete file with diffs
+                                                instead of usual diff snippets
+```
+
+## log
+```markdown
+  git log --oneline .... shows log in single line per commit -> alias for
+                         '--pretty=oneline --abbrev-commit'
+  git log --graph ...... text based graph of commit history
+  git log --decorate ... decorate log with REFs
+```
+
+## patching
+```markdown
+  git format-patch <opt> <since>/<revision range>
+    opt:
+      -N ................... use [PATCH] instead [PATCH n/m] in subject when
+                             generating patch description (for patches spanning
+                             multiple commits)
+      --start-number <n> ... start output file generation with <n> as start
+                             number instead '1'
+    since spcifier:
+      -3 .................. e.g: create a patch from last three commits
+      <comit hash> ........ create patch with commits starting after <comit hash>
+
+  git am <patch> ......... apply patch and create a commit for it
+
+  git apply --stat <PATCH> ... see which files the patch would change
+  git apply --check <PATCH> .. see if the patch can be applied cleanly
+  git apply <PATCH> .......... apply the patch locally without creating a commit
+
+  # eg: generate patches for each commit from initial commit on
+  git format-patch -N $(git rev-list --max-parents=0 HEAD)
+
+  # generate single patch file from a certain commit/ref
+  git format-patch <COMMIT/REF> --stdout > my-patch.patch
+```
+
+## submodules
+```markdown
+  git submodule add <url> [<path>] .......... add new submodule to current project
+  git clone --recursive <url> ............... clone project and recursively all
+                                              submodules (same as using
+                                              'git submodule update --init
+                                              --recursive' after clone)
+  git submodule update --init --recursive ... checkout submodules recursively
+                                              using the commit listed in the
+                                              super-project (in detached HEAD)
+  git submodule update --remote <submod> .... fetch & merge remote changes for
+                                              <submod>, this will pull
+                                              origin/HEAD or a branch specified
+                                              for the submodule
+```
+
+## inspection
+```markdown
+  git ls-tree [-r] <ref> .... show git tree for <ref>, -r to recursively ls sub-trees
+  git show <obj> ............ show <obj>
+  git cat-file -p <obj> ..... print content of <obj>
+```
+
+## revision_range
+```markdown
+  HEAD ........ last commit
+  HEAD~1 ...... last commit-1
+  HEAD~N ...... last commit-N (linear backwards when in tree structure, check
+                difference between HEAD^ and HEAD~)
+  git rev-list --max-parents=0 HEAD ........... first commit
+```