39 fn open_file(file_path: &str) -> File {  in open_file()
107             let mut field = line.split(":").collect::<Vec<&str>>();  in write_group_file()
108             let mut users = field.last().unwrap().split(",").collect::<Vec<&str>>();  in write_group_file()
112                 .collect::<Vec<&str>>();  in write_group_file()
149             let mut field = line.split(":").collect::<Vec<&str>>();  in write_gshadow_file()
150             let mut users = field.last().unwrap().split(",").collect::<Vec<&str>>();  in write_gshadow_file()
154                 .collect::<Vec<&str>>();  in write_gshadow_file()
200         let lines: Vec<&str> = content.lines().collect();  in update_passwd_file()
204                 let field = line.split(':').collect::<Vec<&str>>();  in update_passwd_file()
207             .collect::<Vec<&str>>()  in update_passwd_file()
222             let mut field = line.split(':').collect::<Vec<&str>>();  in update_group_file()
223             let mut users = field.last().unwrap().split(",").collect::<Vec<&str>>();  in update_group_file()
250         let lines: Vec<&str> = content.lines().collect();  in update_shadow_file()
254             .collect::<Vec<&str>>()  in update_shadow_file()
269             let mut field = line.split(':').collect::<Vec<&str>>();  in update_gshadow_file()
270             let mut users = field.last().unwrap().split(",").collect::<Vec<&str>>();  in update_gshadow_file()
332             let mut fields = line.split(':').collect::<Vec<&str>>();  in update_passwd_file()
374             let mut fields = line.split(':').collect::<Vec<&str>>();  in update_group_file()
375             let mut users = fields[3].split(",").collect::<Vec<&str>>();  in update_group_file()
379                 .collect::<Vec<&str>>();  in update_group_file()
418                 let mut fields = line.split(':').collect::<Vec<&str>>();  in update_shadow_file()
444             let mut fields = line.split(':').collect::<Vec<&str>>();  in update_gshadow_file()
445             let mut users = fields[3].split(",").collect::<Vec<&str>>();  in update_gshadow_file()
449                 .collect::<Vec<&str>>();  in update_gshadow_file()
600             let field = line.split(':').collect::<Vec<&str>>();  in update_group_file()
618             let field = line.split(':').collect::<Vec<&str>>();  in update_gshadow_file()
657             let mut field = line.split(':').collect::<Vec<&str>>();  in update_group_file()
681             let mut field = line.split(':').collect::<Vec<&str>>();  in update_gshadow_file()
708             let mut field = line.split(':').collect::<Vec<&str>>();  in update_passwd_file()