push or get File or Folder using scp wrapped with expect and bash

2022-05-02 00:15:42

经常需要把服务器的某些文件传到 Mac，或者获取 Mac 的一些文件到服务器。尽管有很多命令scp, ftp, rsync都可以，霸特每次都有敲好长的命令，好烦，而且还要输入密码。所以想着 wrap 到 expect 脚本这样密码什么的都不用输入了。

下面这个是放在服务器端的，用于把file/folder 传到 Mac

#!/usr/bin/expect

#file: _getF.expect

# 和 Bash 的变量一样

# 定义时不加$,用的时候加

set host xxxx@00.000.00.00

set fromWhere [lindex $argv 0]

set toWhere [lindex $argv 1]

#服务器端目录变量

if { $toWhere == "desktop" } {

    set toWhere "/home/rayleo/Desktop/"

} elseif { $toWhere == "downloads" } {

    set toWhere "/home/rayleo/Downloads/"

} elseif { $toWhere == "home" } {

    set toWhere "/home/rayleo/"

} else {

    set toWhere $toWhere

}

spawn scp -r -p "$host:$fromWhere" "$toWhere"

expect "assword:"

send "wwlcr\r"

interact

本来想服务器端和本地的一些常用变量可以用变量代替，

为了不被 Bash 在命令行解析，需要把$放在单引号或者\转意

但是传进来的变量无法被再次解析,I haven't figure out why yet

例如

putF $desktop/lensid/conf.mout desktop

把服务器端桌面的 lensid/conf.mout 文件传到自己的 Mac桌面

传进来的$desktop 就无法解析了

单引号是同样的情况

can you tell me why? mail

不能解析就绕呗，所以就想到用一个 bash wrapper来处理，再传给 expect

用 Bash字符串替换

#!/bin/bash

#file: getF.bash

#获取参数

fromWhere=$1

toWhere=$2

#解析Mac变量

home=/Users/ruili

desktop=/Users/ruili/Desktop

downloads=/Users/ruili/Downloads

desk=/Users/ruili/YunPan/DeskFolder

fromWhere=${fromWhere//\$desktop/$desktop}

fromWhere=${fromWhere//\$desk/$desk}

fromWhere=${fromWhere//\$downloads/$downloads}

fromWhere=${fromWhere//\$home/$home}

# 服务器本地变量

lhome=/home/rayleo

ldesktop=/home/rayleo/Desktop

ldownloads=/home/rayleo/Downloads

toWhere=${toWhere//\$desktop/$ldesktop}

toWhere=${toWhere//\$downloads/$ldownloads}

toWhere=${toWhere//\$home/$lhome}

#传给 expect

/usr/bin/expect $HOME/Bin/bin/_getF "$fromWhere" $toWhere

下面的是 putF (pushF) ；把文件从服务器推到 Mac 端

#!/usr/bin/expect

#_putF.expect

#定义变量

set host xxxxxxx@00.000.00.00

set fromWhere [lindex $argv 0]

set toWhere [lindex $argv 1]

set desktop "/Users/ruili/Desktop/"

set downloads "/Users/ruili/Downloads/"

set home "/Users/ruili/"

#为单特殊目录替换

if { $toWhere == "desktop" } {

    set toWhere "/Users/ruili/Desktop/"

} elseif { $toWhere == "downloads" } {

    set toWhere "/Users/ruili/Downloads/"

} elseif { $toWhere == "desk" } {

    set toWhere "/Users/ruili/YunPan/DeskFolder/"

} else {

    set toWhere $toWhere

}

#执行

spawn scp -r -p "$fromWhere" "$host:$toWhere"

expect "assword:"

send "wwlcr\r"

interact

Bash wrapper

#!/bin/bash

#file: putF.bash

fromWhere=$1

toWhere=$2

home=/Users/ruili

desktop=/Users/ruili/Desktop

downloads=/Users/ruili/Downloads

desk=/Users/ruili/YunPan/DeskFolder

toWhere=${toWhere//\$desktop/$desktop}

toWhere=${toWhere//\$desk/$desk}

toWhere=${toWhere//\$downloads/$downloads}

toWhere=${toWhere//\$home/$home}

lhome=/home/rayleo

ldesktop=/home/rayleo/Desktop

ldownloads=/home/rayleo/Downloads

fromWhere=${fromWhere//\$desktop/$ldesktop}

fromWhere=${fromWhere//\$downloads/$ldownloads}

fromWhere=${fromWhere//\$home/$lhome}

/usr/bin/expect $HOME/Bin/bin/_putF $fromWhere $toWhere

现在可以

putF \$downloads/google.dmg desktop

把/home/$USER/Downloads 底下的 google.dmg 文件传到 Mac 的桌面

getF \$desktop/bt2_bf_PE.fq \$desktop/../QTL

把 Mac 桌面的bt2_bf_PE.fq文件传到服务的和桌面同级的 QTL 文件

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