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flock(2) -- apply or remove an advisory lock on an open file
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flock() applies or removes an advisory lock on the file associated with the file descriptor fd. A lock is applied by specifying an operation parameter that is one of LOCK_SH or LOCK_EX with the option... |
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fork(2) -- create a new process
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fork() causes creation of a new process. The new process (child process) is an exact copy of the calling process (parent process) except for the following: +o The child process has a unique process ID... |
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fpathconf(2) -- get configurable pathname variables
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The pathconf() and fpathconf() functions provides a method for applications to determine the current value of a configurable system limit or option variable associated with a pathname or file descript... |
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fstat(2) -- get file status
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The stat() function obtains information about the file pointed to by path. Read, write, or execute permission of the named file is not required, but all directories listed in the path name leading to ... |
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fstatfs(2) -- get file system statistics
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statfs() returns information about a mounted file system. path is the path name of any file within the mounted file system. buf is a pointer to a statfs structure defined as follows: typedef struct { ... |
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fsync(2) -- synchronize a file's in-core state with that on disk
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fsync() causes all modified data and attributes of fd to be moved to a permanent storage device. This normally results in all incore modified copies of buffers for the associated file to be written to... |
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ftruncate(2) -- truncate or extend a file to a specified length
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truncate() causes the file named by path or referenced by fd to be truncated or extended to length bytes in size. If the file was larger than this size, the extra data is lost. If the file was smaller... |
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futimes(2) -- set file access and modification times
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The access and modification times of the file named by path or referenced by fd are changed as specified by the argument times. If times is NULL, the access and modification times are set to the curre... |
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getdirentries(2) -- get directory entries in a filesystem independent format
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getdirentries() reads directory entries from the directory referenced by the file descriptor fd into the buffer pointed to by buf, in a filesystem independent format. Up to nbytes of data will be tran... |
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getegid(2) -- get group process identification
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The getgid() function returns the real group ID of the calling process, getegid() returns the effective group ID of the calling process. The real group ID is specified at login time. The real group ID... |
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geteuid(2) -- get user identification
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The getuid() function returns the real user ID of the calling process. The geteuid() function returns the effective user ID of the calling process. The real user ID is that of the user who has invoked... |
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getfh(2) -- get file handle
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getfh() returns a file handle for the specified file or directory in the file handle pointed to by fhp. This system call is restricted to the superuser. |
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getfsstat(2) -- get list of all mounted file systems
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getfsstat() returns information about all mounted file systems. buf is a pointer to an array of statfs(2) structures defined as follows: typedef struct { int32_t val[2]; } fsid_t; #define MFSNAMELEN 1... |
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getgid(2) -- get group process identification
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The getgid() function returns the real group ID of the calling process, getegid() returns the effective group ID of the calling process. The real group ID is specified at login time. The real group ID... |
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getgroups(2) -- get group access list
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getgroups() gets the current group access list of the current user process and stores it in the array gidset. The parameter gidsetlen indicates the number of entries that may be placed in gidset. getg... |
