% ENTERPRISE PATTERNS(1) krebs Manuals
% krebs

# NAME

Enterprise Patterns - Stellt sicher, dass das richtige passiert, egal was gemacht wird

# DEFINITIONS


### Enterprise Patterns
- Stellt sicher, dass das richtige passiert, egal was gemacht wird


### Enterprise Loop


### Enterprise Exception Handling
- ggf ersetzbar durch enterprise loop.


### Enterprise Installation
- curl a shellscript directly into your interpreter
```
curl https://nixos.org/nix/install | sh
```


### Rebooting


### Enterprise Einschalter (eon)
- Device that turns something on as soon as possible.


### Supernintendo Pattern


### Enterprise Root
- scripts which need root access but are called with lower privileges.
- The Enterprise Root Pattern provides a Solution for this issue by calling the script itself as sudo.
```
<code>
if test "${nosudo-false}" != true -a `id -u` != 0; then
  echo "we're going sudo..." >&2
  exec sudo "$0" "$@"
  exit 23 # go to hell
fi
</script> // enterprise ist, wenn <code> ... </script> trotzdem matcht
```


### Enterprise Shutdown
- Mittel der Wahl um einen Shutdown zu erzwingen
- Bsp: das Not-Aus in der Maschinensicherheit


### Enterprise Deep Copy
- Bsp: var copy = JSON.parse(JSON.stringify(source))


### Enterprise Thinking
- Prozess um auf Enterprise Patterns zu kommen


### Bug-Driven Development


### Source-based Documentation / Help
- __
```
<code>
  #! /bin/sh
  if echo "$*" | grep -q '\(^\| \)-h\( \|$\)'; then
    cat "$0"
  fi
  # [more code]
</code>
```


### Literate Programming
- Omit all the comments.


### Litterate Programming
- Write throw-away code and it will become production code


### Enterprise Expect
- Because you always know what you want, `expect(3)` script code can be replaced by a `subshell and pipe` pattern :
```
<code>
    ( echo "$username"; sleep 1; echo "$password"; sleep 1; echo "cp old new" ) | telnet
</code>
```
- painload example: `//retiolum/bin/announce_pubkey`


### Enterprise Waiting
- Quietly wait until someone else solves the problem.
- Passive variant of Complainterprise Waiting.


### Complainterprise Waiting
- Submit a bug report and do Enterprise Waiting.
- Active variant of Enterprise Waiting.


# SEE ALSO
  thesauron(1)