2022-11-24 14:37:21 +01:00
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# DumpGDBM
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2022-11-26 01:19:17 +01:00
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GNU dbm (ou GDBM, en abrégé) est une
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bibliothèque de fonctions de base de données qui utilise un hachage extensible,
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une association `key/value` persistante.
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https://en.wikipedia.org/wiki/DBM_(computing)
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## Exemple
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Le mini-script Perl `exemple.pl` montre bien comment faire une "base de données
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2022-12-03 17:43:04 +01:00
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associative" en Perl. Il extrait les champs _usernale_ et _GECOS_ du fichier
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`/etc/passwd` et les injecte dans un fichier gdbm.
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2022-11-26 01:19:17 +01:00
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2022-12-03 17:43:04 +01:00
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```
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tth@redlady:~/Devel/KlugyTools/DumpGDBM$ ./exemple.pl
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tth@redlady:~/Devel/KlugyTools/DumpGDBM$ ./dumpgdbm -i exemple.gdbm
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working on [exemple.gdbm]
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2022-11-26 01:19:17 +01:00
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2022-12-03 17:43:04 +01:00
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dumpgdbm > first
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K: rtkit.
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D: RealtimeKit,,,.
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dumpgdbm > next
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K: man.
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D: man.
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dumpgdbm > next
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K: lightdm.
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D: Light Display Manager.
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dumpgdbm > ? ks
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command [ks]
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Search a posix regex pattern in all the key fields.
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dumpgdbm > ks root
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K: root.
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D: root.
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dumpgdbm > ks tth
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K: tth.
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D: tTh,,,.
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dumpgdbm >
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EOF ?
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tth@redlady:~/Devel/KlugyTools/DumpGDBM$
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```
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Well done bro.
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2022-11-26 01:19:17 +01:00
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