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...hab den Beitrag gerade ergänzt
Die erste Buchstabengruppe/Ziffer ist die Berechtigung für den User (u), danach für die Gruppe (g) und danach für alle (o)
In deinem Fall also
User plex darf lesen+schreiben
Gruppe plex darf lesen
alle anderen dürfen lesen
Gibt auch andere Schreibweisen, zB u=rw,g=r,o=r oder u=rw,go=r .... Auszug aus man chmod
EXAMPLES OF VALID MODES
644 make a file readable by anyone and writable by the owner only.
go-w deny write permission to group and others.
=rw,+X set the read and write permissions to the usual defaults, but retain any execute permissions that are currently set.
+X make a directory or file searchable/executable by everyone if it is already searchable/executable by anyone.
755
u=rwx,go=rx
u=rwx,go=u-w make a file readable/executable by everyone and writable by the owner only.
go= clear all mode bits for group and others.
g=u-w set the group bits equal to the user bits, but clear the group write bit.
Die erste Buchstabengruppe/Ziffer ist die Berechtigung für den User (u), danach für die Gruppe (g) und danach für alle (o)
In deinem Fall also
User plex darf lesen+schreiben
Gruppe plex darf lesen
alle anderen dürfen lesen
Gibt auch andere Schreibweisen, zB u=rw,g=r,o=r oder u=rw,go=r .... Auszug aus man chmod
EXAMPLES OF VALID MODES
644 make a file readable by anyone and writable by the owner only.
go-w deny write permission to group and others.
=rw,+X set the read and write permissions to the usual defaults, but retain any execute permissions that are currently set.
+X make a directory or file searchable/executable by everyone if it is already searchable/executable by anyone.
755
u=rwx,go=rx
u=rwx,go=u-w make a file readable/executable by everyone and writable by the owner only.
go= clear all mode bits for group and others.
g=u-w set the group bits equal to the user bits, but clear the group write bit.