man pages section 3: Basic Library Functions
    
R
 
 raise — send signal to program ( Index Term Link )
 
 rand — simple random number generator ( Index Term Link )
 
 rand — simple random-number generator ( Index Term Link )
 
 random — pseudorandom number functions ( Index Term Link )
 
 random number generator
  — drand48 ( Index Term Link )
  — erand48 ( Index Term Link )
  — jrand48 ( Index Term Link )
  — lcong48 ( Index Term Link )
  — lrand48 ( Index Term Link )
  — mrand48 ( Index Term Link )
  — nrand48 ( Index Term Link )
  — rand ( Index Term Link )
  — seed48 ( Index Term Link )
  — srand48 ( Index Term Link )
 
 random number generator, simple
  — rand ( Index Term Link )
  — srand ( Index Term Link )
 
 rctl_walk — visit registered rctls on current system ( Index Term Link )
 
 rctlblk_get_enforced_value — manipulate resource control blocks ( Index Term Link )
 
 rctlblk_get_firing_time — manipulate resource control blocks ( Index Term Link )
 
 rctlblk_get_global_action — manipulate resource control blocks ( Index Term Link )
 
 rctlblk_get_global_flags — manipulate resource control blocks ( Index Term Link )
 
 rctlblk_get_local_action — manipulate resource control blocks ( Index Term Link )
 
 rctlblk_get_local_flags — manipulate resource control blocks ( Index Term Link )
 
 rctlblk_get_privilege — manipulate resource control blocks ( Index Term Link )
 
 rctlblk_get_recipient_pid — manipulate resource control blocks ( Index Term Link )
 
 rctlblk_get_value — manipulate resource control blocks ( Index Term Link )
 
 rctlblk_set_local_action — manipulate resource control blocks ( Index Term Link )
 
 rctlblk_set_local_flags — manipulate resource control blocks ( Index Term Link )
 
 rctlblk_set_privilege — manipulate resource control blocks ( Index Term Link )
 
 rctlblk_set_value — manipulate resource control blocks ( Index Term Link )
 
 rctlblk_size — manipulate resource control blocks ( Index Term Link )
 
 re_comp — compile and execute regular expressions ( Index Term Link )
 
 re_exec — compile and execute regular expressions ( Index Term Link )
 
 read a string of characters without echo — getpass ( Index Term Link )
 
 read a directory entry — readdir ( Index Term Link )
 
 read a string of characters without echo, — getpassphrase ( Index Term Link )
 
 read directory
  — readdir ( Index Term Link )
  — readdir_r ( Index Term Link )
 
 readdir — read a directory entry ( Index Term Link )
 
 readdir — read directory ( Index Term Link )
  POSIX ( Index Term Link )
 
 readdir_r — read directory ( Index Term Link )
 
 realloc — memory allocator ( Index Term Link )
 
 realpath — resolve pathname ( Index Term Link )
 
 reboot — reboot system or halt processor ( Index Term Link )
 
 regcmp — compile regular expression ( Index Term Link )
 
 regcomp — regular expression matching ( Index Term Link )
 
 regerror — regular expression matching ( Index Term Link )
 
 regex — execute regular expression ( Index Term Link )
 
 regexec — regular expression matching ( Index Term Link )
 
 regfree — regular expression matching ( Index Term Link )
 
 register a function to run at process termination or object unloading— atexit ( Index Term Link )
 
 register fork handlers — pthread_atfork ( Index Term Link )
 
 regular expression matching
  — regcomp ( Index Term Link )
  — regerror ( Index Term Link )
  — regexec ( Index Term Link )
  — regfree ( Index Term Link )
 
 regular expressions, compile and execute — regcmp, regex ( Index Term Link )
 
 remove — remove file ( Index Term Link )
 
 remque — remove elment from a queue ( Index Term Link )
 
 reposition a file-position indicator in a stream
  — fseek ( Index Term Link )
  — fseeko ( Index Term Link )
 
 reset file position indicator in a stream — rewind ( Index Term Link )
 
 reset position of directory stream to the beginning of a directory — rewinddir ( Index Term Link )
 
 resetmnttab — get mnttab file information ( Index Term Link )
 
 resolve pathname — realpath ( Index Term Link )
 
 resource utilization, get information — getrusage ( Index Term Link )
 
 retrieve stack boundaries — stack_getbounds ( Index Term Link )
 
 return a file offset for a file descriptor — tell ( Index Term Link )
 
 return a file offset in a stream
  — ftell ( Index Term Link )
  — ftello ( Index Term Link )
 
 return pathname of executable — getexecname ( Index Term Link )
 
 rewind — reset file position indicator in a stream ( Index Term Link )
 
 rewinddir — reset position of directory stream to the beginning of a directory ( Index Term Link )
 
 rindex — string operations ( Index Term Link )