CHOWN(1L) CHOWN(1L) NNAAMMEE chown - change the user and group ownership of files SSYYNNOOPPSSIISS cchhoowwnn [-Rcfv] [--recursive] [--changes] [--help] [--ver- sion] [--silent] [--quiet] [--verbose] [user][:.][group] file... DDEESSCCRRIIPPTTIIOONN This manual page documents the GNU version of cchhoowwnn. cchhoowwnn changes the user and/or group ownership of each given file, according to its first non-option argument, which is interpreted as follows. If only a user name (or numeric user ID) is given, that user is made the owner of each given file, and the files' group is not changed. If the user name is followed by a colon or dot and a group name (or numeric group ID), with no spaces between them, the group ownership of the files is changed as well. If a colon or dot but no group name follows the user name, that user is made the owner of the files and the group of the files is changed to that user's login group. If the colon or dot and group are given, but the user name is omitted, only the group of the files is changed; in this case, cchhoowwnn performs the same function as cchhggrrpp. OOPPTTIIOONNSS _-_c_, _-_-_c_h_a_n_g_e_s Verbosely describe only files whose ownership actu- ally changes. _-_f_, _-_-_s_i_l_e_n_t_, _-_-_q_u_i_e_t Do not print error messages about files whose own- ership cannot be changed. _-_v_, _-_-_v_e_r_b_o_s_e Verbosely describe ownership changes. _-_R_, _-_-_r_e_c_u_r_s_i_v_e Recursively change ownership of directories and their contents. _-_-_h_e_l_p Print a usage message on standard output and exit successfully. _-_-_v_e_r_s_i_o_n Print version information on standard output then exit successfully. FSF GNU File Utilities 1 .