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proc_pid_cwd

Section: File Formats (5)
Updated: 202-0-08
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/proc/pid/cwd - symbolic link to current working directory

/proc/pid/cwd: This is a symbolic link to the current working directory of the process. To find out the current working directory of process 20, for instance, you can do this:
: $ cd /proc/20/cwd; pwd -P
: 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).