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lpi1:hardlink
Unterschiede
Hier werden die Unterschiede zwischen zwei Versionen gezeigt.
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lpi1:hardlink [2014/05/15 13:12] 127.0.0.1 Externe Bearbeitung |
lpi1:hardlink [2020/12/04 14:38] |
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| - | ====== Hardlinks ====== | ||
| - | ===== Datei umbenennen ohne Ausfallzeit ===== | ||
| - | cd /etc/postfix/maps | ||
| - | ln virtual_alias_maps.txt virtual_mailbox_maps.txt | ||
| - | postmap virtual_mailbox_maps.txt | ||
| - | postconf -e 'virtual_mailbox_maps = hash:/etc/postfix/maps/virtual_mailbox_maps.txt' | ||
| - | rm virtual_alias_maps.txt virtual_alias_maps.txt.db | ||
| - | ===== Backup ===== | ||
| - | (( Das Beispiel hier ist nicht sehr praxisnah. Eine bessere Variante beschreibe ich unter [[admin_grundlagen:rsync|rsync]] )) | ||
| - | === 1. Backup === | ||
| - | cp -a /usr/share/doc sonntag | ||
| - | |||
| - | === 2. Backup === | ||
| - | cp -al sonntag montag | ||
| - | rsync -a /usr/share/doc montag | ||
| - | |||
| - | === 3. Backup === | ||
| - | cp -a montag dienstag | ||
| - | rsync -a /usr/share/doc dienstag | ||
| - | |||
| - | ... | ||
| - | ===== Verzeichnisse zusammenführen ===== | ||
| - | <file> | ||
| - | |-- dir1 | ||
| - | | |-- a | ||
| - | | | |-- file1.txt | ||
| - | | | `-- file2.txt | ||
| - | | |-- b | ||
| - | | | `-- file3.txt | ||
| - | | `-- c | ||
| - | | `-- file4.txt | ||
| - | `-- dir2 | ||
| - | |-- a | ||
| - | | |-- file5.txt | ||
| - | | `-- file6.txt | ||
| - | |-- b | ||
| - | | |-- file7.txt | ||
| - | | `-- file8.txt | ||
| - | `-- c | ||
| - | |-- file10.txt | ||
| - | `-- file9.txt | ||
| - | </file> | ||
| - | |||
| - | mkdir merge | ||
| - | cp -rl dir1/. dir2/. merge | ||
| - | rm -r dir* | ||
| - | tree merge | ||
| - | |||
| - | <file> | ||
| - | merge | ||
| - | ├── a | ||
| - | │ ├── file1.txt | ||
| - | │ ├── file2.txt | ||
| - | │ ├── file5.txt | ||
| - | │ └── file6.txt | ||
| - | ├── b | ||
| - | │ ├── file3.txt | ||
| - | │ ├── file7.txt | ||
| - | │ └── file8.txt | ||
| - | └── c | ||
| - | ├── file10.txt | ||
| - | ├── file4.txt | ||
| - | └── file9.txt | ||
| - | </file> | ||
| - | |||
| - | (( alternativ mit rsync: | ||
| - | rsync -ax --link-dest=/tmp/dir1/ dir1/ merged/ | ||
| - | rsync -ax --link-dest=/tmp/dir2/ dir2/ merged/ | ||
| - | Achtung: link-dest muss absolut angegeben werden | ||
| - | )) | ||
lpi1/hardlink.txt · Zuletzt geändert: 2023/12/12 13:07 (Externe Bearbeitung)
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