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chmod +x chmod a+x 的区别 #256

Open 1587 opened 6 years ago

1587 commented 6 years ago

https://www.raspberrypi.org/forums/viewtopic.php?f=27&t=40985

   A combination of the letters ugoa controls which users' access to the file will be changed: the user who owns it (u),  other
   users  in  the file's group (g), other users not in the file's group (o), or all users (a).  If none of these are given, the
   effect is as if a were given, but bits that are set in the umask are not affected.