Update

git.md

@@ -34,3 +34,33 @@ TODO
 - `git diff`
 - `git apply diff_file`
 - *weird error*: just look it up on stack overflow
+
+### Set Up Your Own Git Server
+
+WIP
+
+on server:
+
+```
+mkdir myrepo
+cd myrepo
+git init --bare
+```
+
+on client you can clone and push with ssh:
+
+```
+git clone ssh://user@serveraddress:/path/to/myrepo
+cd myrepo
+... # do some work
+git commit -m "blablabla"
+git push
+```
+
+you can also make your repo clonnable via HTTP if you have HTTP server (e.g. [Apache](apache.md)) running, just have address `http://myserver/myrepo` point to the repo directory, then you can clone with:
+
+```
+git clone http://myserver/myrepo
+```
+
+IMPORTANT NOTE: for the HTTP clone to work you need to do `git update-server-info` on the server in the repo directory after every repo update! You can do this e.g. with a git hook or [cronjob](cronjob.md).

regex.md

@@ -30,7 +30,7 @@ There exist different standards and de-facto standards for regular expressions,
 |`[`*A*`-`*B*`]`| like `[` `]` but specifies a range          | everywhere                 | `[3-5]` matches `3`, `4` and `5`          |
 | `[^`*S*`]`    | matches any char. NOT from set *S*          | everywhere                 | `[^abc]` matches `d`, `e`, `A`, `1` etc.  |
 |`{`*M*`,`*N*`}`| *M* to *N* repetitions of *expr*            |escape (`\{`, `\}`) in basic| `a{2,4}` matches `aa`, `aaa`, `aaaa`      |
-|*exp1*`|`*exp2*| *exp1* or *exp2*                            | escape (`\|`) in basic     | `abc|def` matches `abc` or `def`          |
+|*e1*<code>&#124;</code>*e2*| *e1* or *e2*                    | escape in basic            |<code>ab&#124;cd</code> match. `ab` or `cd`|
 | `\`*n*        |backref., *n*th matched group (starts with 1)| extended only              | `(..).*\1` matches e.g. `ABcdefAB`        |
 |`[:alpha:]`    | alphabetic, *a* to *z*, *A* to *Z*          | Posix (GNU has `[[` `]]`   | `[:alpha:]*` matches e.g. `abcDEF`        |
 |`[:alnum:]`    |                                             | same as above              |                                           |