What do we mean by “ A directory cannot be written on by unprivileged programs” in UNIX?
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While Reading a Research paper- The UNIX Time- Sharing System by Dennis M. Ritchie and Ken Thompson, I stuck at a line which says that
"A directory behaves exactly like an ordinary file except that it
cannot be written on by unprivileged programs, so that the system
controls the contents of directories. However, anyone with appropriate
permission may read a directory just like any other file."
Does it mean that, no files can be stored or can be renamed in directory by unprivileged programs?
unix operating-system
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While Reading a Research paper- The UNIX Time- Sharing System by Dennis M. Ritchie and Ken Thompson, I stuck at a line which says that
"A directory behaves exactly like an ordinary file except that it
cannot be written on by unprivileged programs, so that the system
controls the contents of directories. However, anyone with appropriate
permission may read a directory just like any other file."
Does it mean that, no files can be stored or can be renamed in directory by unprivileged programs?
unix operating-system
add a comment |
While Reading a Research paper- The UNIX Time- Sharing System by Dennis M. Ritchie and Ken Thompson, I stuck at a line which says that
"A directory behaves exactly like an ordinary file except that it
cannot be written on by unprivileged programs, so that the system
controls the contents of directories. However, anyone with appropriate
permission may read a directory just like any other file."
Does it mean that, no files can be stored or can be renamed in directory by unprivileged programs?
unix operating-system
While Reading a Research paper- The UNIX Time- Sharing System by Dennis M. Ritchie and Ken Thompson, I stuck at a line which says that
"A directory behaves exactly like an ordinary file except that it
cannot be written on by unprivileged programs, so that the system
controls the contents of directories. However, anyone with appropriate
permission may read a directory just like any other file."
Does it mean that, no files can be stored or can be renamed in directory by unprivileged programs?
unix operating-system
unix operating-system
asked Jan 2 at 15:48
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Anup patelAnup patel
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Does it mean that, no files can be stored or can be renamed in directory by unprivileged programs?
It means the CONTENTS of a directory file can only be modified through system services.
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1 Answer
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1 Answer
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active
oldest
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active
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active
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Does it mean that, no files can be stored or can be renamed in directory by unprivileged programs?
It means the CONTENTS of a directory file can only be modified through system services.
add a comment |
Does it mean that, no files can be stored or can be renamed in directory by unprivileged programs?
It means the CONTENTS of a directory file can only be modified through system services.
add a comment |
Does it mean that, no files can be stored or can be renamed in directory by unprivileged programs?
It means the CONTENTS of a directory file can only be modified through system services.
Does it mean that, no files can be stored or can be renamed in directory by unprivileged programs?
It means the CONTENTS of a directory file can only be modified through system services.
answered Jan 2 at 21:57
user3344003user3344003
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