work_txt
........\tmp
........\...\a.out
........\...\client
........\...\client.c
........\...\......\a.out
........\...\......\client.c
........\...\......\client.c~
........\...\......\iii
........\...\......\iii.uu
........\...\serv
........\...\....\a.out
........\...\....\serv.c
........\...\....\serv.c~