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April, 26th. 2006:
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proc_pid_exe
Section: File Formats (5) Updated: 202-0-08 Index
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NAME
/proc/pid/exe - symbolic link to program pathname
DESCRIPTION
- /proc/pid/exe
-
Under Linux 2.2 and later,
this file is a symbolic link
containing the actual pathname of the executed command.
This symbolic link can be dereferenced normally;
attempting to open it will open the executable.
You can even type
/proc/pid/exe
to run another copy of the same executable that is being run by
process
pid.
If the pathname has been unlinked,
the symbolic link will contain
the string [aq] (deleted)[aq] appended to the original pathname.
In a multithreaded process,
the contents of this symbolic link
are not available if the main thread has already terminated
(typically by calling
pthread_exit(3)).
-
Permission to dereference or read
(readlink(2))
this symbolic link is governed by a ptrace access mode
PTRACE_MODE_READ_FSCREDS
check;
see
ptrace(2).
-
Under Linux 2.0 and earlier,
/proc/pid/exe
is a pointer to the binary which was executed,
and appears as a symbolic link.
A
readlink(2)
call on this file under Linux 2.0 returns a string in the format:
-
[device]:inode
-
For example,
[0301]:1502 would be inode 1502 on device
major 03 (IDE, MFM, etc. drives)
minor 01 (first partition on the first drive).
-
find(1)
with the
-inum
option can be used to locate the file.
SEE ALSO
proc(5)
Index
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- SEE ALSO
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