About: Chattr

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chattr is the command in Linux that allows a user to set certain attributes of a file. lsattr is the command that displays the attributes of a file. Most BSD-like systems, including macOS, have always had an analogous chflags command to set the attributes, but no command specifically meant to display them; specific options to the ls command are used instead. The chflags command first appeared in 4.4BSD. Solaris has no commands specifically meant to manipulate them. chmod and ls are used instead.

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  • chattr je v informatice příkaz pro nastavení atributů souborů v souborovém systému ext (a jeho nástupcích ext2, ext3, ext4) v operačním systému Linux. Lze ho nalézt i v dalších unixových systémech, které tyto souborové systémy podporují. Používá se pro zabezpečení souboru proti změnám, například pokud chceme, aby soubor nebylo možné smazat nebo se nezměnil při aktualizaci daného programu (viz atribut immutable). (cs)
  • chattr is the command in Linux that allows a user to set certain attributes of a file. lsattr is the command that displays the attributes of a file. Most BSD-like systems, including macOS, have always had an analogous chflags command to set the attributes, but no command specifically meant to display them; specific options to the ls command are used instead. The chflags command first appeared in 4.4BSD. Solaris has no commands specifically meant to manipulate them. chmod and ls are used instead. Other Unix-like operating systems, in general, have no analogous commands. The similar-sounding commands chatr (from HP-UX) and lsattr (from AIX) exist but have unrelated functions. Among other things, the chattr command is useful to make files immutable so that password files and certain system files cannot be erased during software upgrades. (en)
  • chattr est une commande Linux qui permet à un utilisateur de définir certains attributs sur un fichier présent dans divers systèmes de fichiers. Le pendant BSD de cette commande est chflags. La commande est similaire à attrib sous DOS, OS/2 ou Microsoft Windows. Les commandes chatr sur HP-UX et chattr sur AIX n’ont rien à voir avec la commande de cet article. Les commandes chattr et lsattr sous Linux et les attributs manipulés étaient, à l’origine, propres à la deuxième génération de l’Extended File System (ext2, ext3 et ext4), et sont disponibles à travers le package e2fsprogs. Depuis sa création, le support d’autres systèmes de fichiers a été ajouté, notamment pour XFS, ReiserFS, JFS, bien que tous les attributs ne sont pas encore gérés. Cette commande peut être utilisée pour protéger des fichiers de la suppression (notamment pendant des mises à jour système) grâce au bit d’immutabilité. (fr)
  • chattr (abbreviazione dalla lingua inglese di Change attributes, Cambia attributi) è un comando dei sistemi operativi Unix e Unix-like che consente di modificare gli attributi dei file memorizzati su un filesystem di tipo ext2/ext3. (it)
  • chattr는 사용자가 파일의 특정 특성을 설정할 수 있게 해주는 리눅스의 명령어이다. lsattr은 파일의 특성을 표시하는 명령어이다. 대부분의 macOS를 포함한 BSD 계열 시스템들은 특성을 설정하기 위한 유사 명령어 chflags를 무조건 갖추고 있지만 이들을 표시하기 위해 의도된 명령어는 제공하지 않는다. ls 명령어의 특정 옵션들이 이를 대신한다. chflags 명령어는 4.4BSD에 처음 등장하였다. 솔라리스는 이를 조작하기 위한 명령어가 존재하지 않는다. chmod와 ls가 이를 대신한다. (ko)
  • chattr (od ang. change attribute) – polecenie systemu Unix umożliwiające użytkownikowi zmianę konkretnych atrybutów pliku w systemach plików ext2/3/4. Autorem programu jest Remy Card. (pl)
  • O chattr, no Linux, é o comando que permite a um usuário definir certos atributos de um arquivo e o lsattr é o comando que exibe os atributos de um arquivo. A maioria dos sistemas do tipo BSD, incluindo o macOS, sempre tiveram um comando chflags análogo para definir os atributos mas nenhum comando especificamente criado para exibi-los (opções específicas para o comando ls são usadas). O comando chflags apareceu pela primeira vez no 4.4BSD. O Solaris não possui comandos especificamente criados para definir (ou manipular) os atributos dos arquivos. Os comandos chmod e ls são usados para tal finalidade. Outros Unixes, em geral, não possuem comandos análogos. Os comandos chatr (do HP-UX) elsattr (do AIX), que soam semelhantes, existem mas têm funções não relacionadas. Entre outras coisas, o comando chattr é útil para tornar os arquivos imutáveis, de forma que arquivos de senha e certos arquivos de sistema não possam ser apagados durante atualizações de software. (pt)
  • chattr — команда, изменяющая атрибуты файлов на файловых системах ext2fs, ext3, ext4 и частично на других файловых системах Linux. (ru)
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  • Remy Card (en)
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  • chattr (en)
  • chflags (en)
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  • dbr:Linux
  • BSD-like systems, including macOS (en)
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  • chattr je v informatice příkaz pro nastavení atributů souborů v souborovém systému ext (a jeho nástupcích ext2, ext3, ext4) v operačním systému Linux. Lze ho nalézt i v dalších unixových systémech, které tyto souborové systémy podporují. Používá se pro zabezpečení souboru proti změnám, například pokud chceme, aby soubor nebylo možné smazat nebo se nezměnil při aktualizaci daného programu (viz atribut immutable). (cs)
  • chattr (abbreviazione dalla lingua inglese di Change attributes, Cambia attributi) è un comando dei sistemi operativi Unix e Unix-like che consente di modificare gli attributi dei file memorizzati su un filesystem di tipo ext2/ext3. (it)
  • chattr (od ang. change attribute) – polecenie systemu Unix umożliwiające użytkownikowi zmianę konkretnych atrybutów pliku w systemach plików ext2/3/4. Autorem programu jest Remy Card. (pl)
  • chattr — команда, изменяющая атрибуты файлов на файловых системах ext2fs, ext3, ext4 и частично на других файловых системах Linux. (ru)
  • chattr is the command in Linux that allows a user to set certain attributes of a file. lsattr is the command that displays the attributes of a file. Most BSD-like systems, including macOS, have always had an analogous chflags command to set the attributes, but no command specifically meant to display them; specific options to the ls command are used instead. The chflags command first appeared in 4.4BSD. Solaris has no commands specifically meant to manipulate them. chmod and ls are used instead. (en)
  • chattr est une commande Linux qui permet à un utilisateur de définir certains attributs sur un fichier présent dans divers systèmes de fichiers. Le pendant BSD de cette commande est chflags. La commande est similaire à attrib sous DOS, OS/2 ou Microsoft Windows. Les commandes chatr sur HP-UX et chattr sur AIX n’ont rien à voir avec la commande de cet article. Cette commande peut être utilisée pour protéger des fichiers de la suppression (notamment pendant des mises à jour système) grâce au bit d’immutabilité. (fr)
  • O chattr, no Linux, é o comando que permite a um usuário definir certos atributos de um arquivo e o lsattr é o comando que exibe os atributos de um arquivo. A maioria dos sistemas do tipo BSD, incluindo o macOS, sempre tiveram um comando chflags análogo para definir os atributos mas nenhum comando especificamente criado para exibi-los (opções específicas para o comando ls são usadas). O comando chflags apareceu pela primeira vez no 4.4BSD. (pt)
rdfs:label
  • Chattr (cs)
  • Chattr (en)
  • Chattr (fr)
  • Chattr (it)
  • Chattr (ko)
  • Chattr (pl)
  • Chattr (pt)
  • Chattr (ru)
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  • chattr (en)
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