man pages section 2: System Calls
    
R
 
 read from file — read ( Index Term Link )
  pread ( Index Term Link )
  readv ( Index Term Link )
 
 read the contents of a symbolic link — readlink ( Index Term Link )
 
 read/write file pointer
  move — lseek ( Index Term Link ) ( Index Term Link )
 
 readlink — read the contents of a symbolic link ( Index Term Link )
 
 read — read from file ( Index Term Link )
 
 real group ID, set — setregid() ( Index Term Link )
 
 real user ID, set — setreuid() ( Index Term Link )
 
 reboot system, — uadmin ( Index Term Link )
 
 remount root file system, — uadmin ( Index Term Link )
 
 remove directory entry — unlink ( Index Term Link )
 
 remove directory entry — unlinkat ( Index Term Link )
 
 rename — change the name of a file ( Index Term Link )
 
 resolve all symbolic links of a path name — resolvepath ( Index Term Link )
 
 resolvepath — resolve all symbolic links of a path name ( Index Term Link )
 
 retrieve or change the address of per-LWP stack boundary information — getustack ( Index Term Link )
 
 retrieve or change the address of per-LWP stack boundary information — setustack ( Index Term Link )
 
 rmdir — remove a directory ( Index Term Link )
 
 root directory, change — chroot ( Index Term Link )