103 lines
2.0 KiB
Markdown
103 lines
2.0 KiB
Markdown
# Links
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### soft link (symbolic link):
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- ln -s
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- contient le chemin du fichier original
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- link des répertoires
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```bash
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~ mkdir link
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~ touch link/hello.txt
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~ ln -s link/hello.txt
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~ ls
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hello.txt link
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```
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#### Créer un lien symbolic
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```bash
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~ ln -s link/hello.txt hello_you.txt
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~
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$ ls
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hello.txt link hello_you.txt
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```
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```bash
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~/.local/bin
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$ ln -s ~/Documents/Scripts/pihole/sync_pihole_lan.sh sync_pihole
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```
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```bash
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~/.local/bin
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$ ln -s ~/Documents/Scripts/bashbirds/bashbirds.sh bashbird
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```
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### hard link:
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- ln
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- contient le contenu du fichier original (le hardlink et le fichier original partagent le même inode)
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- ne link pas des répertoires
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#### Inode number
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```bash
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~ touch file_1 file_2
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~ ls -i
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43767553 file_1 43767554 file_2
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```
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```bash
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~ ls -l
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-rw-r--r-- 1 bruno staff 0 mai 6 18:29 file_1
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-rw-r--r-- 1 bruno staff 0 mai 6 18:29 file_2
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```
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#### Créer un hard-link
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```bash
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~ ln file_1 hard_ln
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```
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```bash
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~ ls -li
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43767553 -rw-r--r-- 2 bruno staff 0 mai 6 18:29 file_1
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43767554 -rw-r--r-- 1 bruno staff 0 mai 6 18:29 file_2
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43767553 -rw-r--r-- 2 bruno staff 0 mai 6 18:29 hard_ln
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43768356 lrwxr-xr-x 1 bruno staff 14 mai 6 18:46 hello.txt -> link/hello.txt
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43768828 lrwxr-xr-x 1 bruno staff 14 mai 6 18:50 hello_you.txt -> link/hello.txt
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43768326 drwxr-xr-x 3 bruno staff 96 mai 6 18:46 link
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```
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file_1 et hard_ln ont le même inode.
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Si on supprime `file_1`, `hard_ln` conserve le même contenu.
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#### Origine d'un lien
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```bash
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/opt/homebrew/share/zsh/site-functions stable
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❯ readlink -f _yq
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/opt/homebrew/Cellar/yq/4.40.5/share/zsh/site-functions/_yq
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```
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