Golang implementing a cross-platform SCP batch bulk file

This is a creation in Article, where the information may have evolved or changed.

Package Mainimport ("Bufio" "Flag" "FMT" "IO" "OS" "Path/filepath" "Strings" "Github.com/czxichen/autowork/tools/split" "Golang.org/x/crypto/ssh") var (passwd = flag. String ("P", "", "-p passwd Specifies the password.") user = flag. String ("U", "root", "-u root" Specify login user. ") CFG = flag. String ("C", "ServerList", "-C serverlist Specify ServerList") Ip_port = flag. String ("I", "", "-I ip:port specifies the IP port of the target machine and cannot be used in conjunction with-C.") Dpath = flag. String ("D", "", "-d/tmp/20160531.zip specifies the path to be sent to, cannot be empty.") spath = flag. String ("s", "", "-s 20160531.zip specifies the path of the file to be sent, cannot be empty.")) Func main () {flag. Parse () if *dpath = = "" | | *spath = = "" {flag. Printdefaults () OS. Exit (1)}file, err: = OS. Open (*spath) if err! = Nil {fmt. Println ("Open file failed:", err) OS. Exit (1)}info, _: = File.stat () defer file.close () if *ip_port! = "" && *passwd! = "" {Client, err: = Dail (*user, *pa SSWD, *ip_port) if err! = Nil {fmt. Printf ("connection%s failed. \ n", err) OS. Exit (1)}scp (Client, File, info. Size (), *dpath) return}var list [][]stringok: = (*passwd! = "" "&& *ip_port = =" ") List = Config (*cfg, OK) If Len (list) <= 0 {fmt. Println ("ServerList cannot be empty.") Os. Exit (1)}for _, V: = Range List {If ok {*ip_port = v[0]} else {*user = V[0]*PASSWD = V[1]*ip_port = V[2]}client, err: = Dai L (*user, *passwd, *ip_port) if err! = Nil {fmt. Printf ("connection%s failed. \ n", err) CONTINUE}SCP (Client, File, info.) Size (), *dpath)}}func dail (user, password, ip_port string) (*ssh. Client, error) {PassWd: = []ssh. Authmethod{ssh. Password (Password)}conf: = ssh. Clientconfig{user:user, Auth:passwd}return ssh. Dial ("TCP", Ip_port, &conf)}func SCP (Client *ssh. Client, File io. Reader, size int64, path string) {filename: = filepath. Base (path) dirname: = Strings. Replace (filepath. Dir (path), "\ \", "/",-1) Defer Client.close () session, Err: = Client.newsession () if err! = Nil {fmt. PRINTLN ("Create Session failed:", err) Return}go func () {W, _: = Session. Stdinpipe () fmt. Fprintln (W, "C0644", size, filename) io. Copyn (W, File, size) fmt. Fprint (W, "\x00") W.close ()} () If err: = Session. Run (FMT. Sprintf ("/usr/bin/scp-qrt%s", dirname)); Err! = Nil {fmt.Println ("Execute SCP Command failed:", err) return} else {fmt. Printf ("%s sent successfully. \ n", Client.remoteaddr ()) session. Close ()}if session, Err = Client.newsession (); Err = = Nil {defer session. Close () buf, err: = Session. Output (FMT. Sprintf ("/usr/bin/md5sum%s", path)) If err! = Nil {fmt. PRINTLN ("Check MD5 failed:", err) return}fmt. Printf ("md5:\n%s\n" of "%s", Client.remoteaddr (), String (buf))}}func config (path string, OK bool) (list [][]string) {File, er R: = OS. Open (PATH) if err! = Nil {fmt. Printf ("Open config file failed:%s\n", err) OS. Exit (1)}defer file.close () buf: = Bufio. Newreader (File) for {line, _, Err: = buf. ReadLine () if err! = Nil {break}str: = strings. Trimspace (String) STRs: = Split. Split (str) If OK {if Len (strs)! = 1 {Continue}} else {if Len (strs)! = 3 {continue}}list = append (list, STRs)}return}