cd — Change the current folder of your shell.

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Wat het doet

cd (change directory) moves your shell to another folder. It is built into the shell, because only the shell itself can change its own current folder.

Special targets: cd alone or cd ~ = your home folder, cd - = the previous folder, cd .. = one level up, cd / = the root.

The variable CDPATH can hold a list of base folders that cd also searches.

Zo schrijf je het

cd [-L|[-P [-e]]] [DIRECTORY]

Opties 6

Meest gebruikt

DIRECTORY: The folder to go to. Without it: your home folder.
-: Go back to the previous folder (and print its name).
-L: Follow symbolic links logically (the default): pwd shows the link path.
-P: Use the physical folder: resolve symbolic links.
-e: With -P: return an error if the current folder cannot be found.
-@: On systems that support it: show extended attributes as a folder.

Voorbeelden 11

$ als gewone gebruiker# als root (of met sudo)

1Go to a folder
```
$cd /var/log
```
An absolute path works from anywhere.
2Go back to your home folder
```
$cd
```
Same as cd ~ or cd $HOME.
3Switch between two folders
```
$cd /etc/nginx/conf.d
$cd /var/log/nginx
$cd -
```
cd - jumps back and forth. Very handy while you edit config and read logs.
4Go up one or two levels
```
$cd ..
$cd ../..
```
.. is the parent folder.
5Go to the home folder of another user
```
#cd ~alice
```
Works for root or when you have the rights to that folder.
6Go to the real folder behind a link
```
$cd -P /etc/alternatives/java
$pwd
```
Shows the real path of the link target.
7Stop a script when cd fails
```
$cd /srv/app || exit 1
```
Without this check, the next commands (like rm -rf *) would run in the wrong folder.
8Use the folder of the script itself
```
$cd "$(dirname "$0")"
```
Makes a script work from any place it is called from.
9Use a short base path list
```
$export CDPATH=.:/srv/apps:/etc
$cd ssh
```
cd ssh now finds /etc/ssh. Put CDPATH in ~/.bashrc if you like it.
10Remember folders on a stack
```
$pushd /etc/ssh
$pushd /var/log
$popd
```
pushd and popd keep a list of folders. dirs -v shows it.
11Go to a folder with spaces in its name
```
$cd "/mnt/backup/Project Files"
```
Quotes (or a backslash before the space) keep the name together.

Let op

cd in a script changes only the folder of that script, not of your shell. Use source if you need that.
sudo cd /root does not work (cd is a built-in). Use sudo -i and then cd.

Tips om te onthouden

cd = home, cd - = back, cd .. = up.

`cd`

Wat het doet

Zo schrijf je het

Opties 6

Voorbeelden 11

1Go to a folder

2Go back to your home folder

3Switch between two folders

4Go up one or two levels

5Go to the home folder of another user

6Go to the real folder behind a link

7Stop a script when cd fails

8Use the folder of the script itself

9Use a short base path list

10Remember folders on a stack

11Go to a folder with spaces in its name

Let op

Tips om te onthouden

Volledige handleiding

cd

Wat het doet

Zo schrijf je het

Opties 6

Voorbeelden 11

1Go to a folder

2Go back to your home folder

3Switch between two folders

4Go up one or two levels

5Go to the home folder of another user

6Go to the real folder behind a link

7Stop a script when cd fails

8Use the folder of the script itself

9Use a short base path list

10Remember folders on a stack

11Go to a folder with spaces in its name

Let op

Tips om te onthouden

Verwante commando's

Gebruikt in deze lessen

Volledige handleiding

`cd`