blob: 71205923b6e39b2442b4221a70bcb68aac4a438f (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
|
# Quick Start
This chapter is for impatient people who don't like reading
documentation. For more in-depth information you are kindly referred
to subsequent chapters.
1. Install single-user Nix by running the following:
```console
$ bash <(curl -L https://nixos.org/nix/install)
```
This will install Nix in `/nix`. The install script will create
`/nix` using `sudo`, so make sure you have sufficient rights. (For
other installation methods, see
[here](installation/installation.md).)
1. See what installable packages are currently available in the
channel:
```console
$ nix-env -qa
docbook-xml-4.3
docbook-xml-4.5
firefox-33.0.2
hello-2.9
libxslt-1.1.28
…
```
1. Install some packages from the channel:
```console
$ nix-env -i hello
```
This should download pre-built packages; it should not build them
locally (if it does, something went wrong).
1. Test that they work:
```console
$ which hello
/home/eelco/.nix-profile/bin/hello
$ hello
Hello, world!
```
1. Uninstall a package:
```console
$ nix-env -e hello
```
1. You can also test a package without installing it:
```console
$ nix-shell -p hello
```
This builds or downloads GNU Hello and its dependencies, then drops
you into a Bash shell where the `hello` command is present, all
without affecting your normal environment:
```console
[nix-shell:~]$ hello
Hello, world!
[nix-shell:~]$ exit
$ hello
hello: command not found
```
1. To keep up-to-date with the channel, do:
```console
$ nix-channel --update nixpkgs
$ nix-env -u '*'
```
The latter command will upgrade each installed package for which
there is a “newer” version (as determined by comparing the version
numbers).
1. If you're unhappy with the result of a `nix-env` action (e.g., an
upgraded package turned out not to work properly), you can go back:
```console
$ nix-env --rollback
```
1. You should periodically run the Nix garbage collector to get rid of
unused packages, since uninstalls or upgrades don't actually delete
them:
```console
$ nix-collect-garbage -d
```
|
