期望退出，不響應發送的文本

我有一個正在退出的期望腳本，而不是處理髮送的文本和安裝文件。我試圖弄清楚為什麼它沒有安裝文件，即如果我手動執行該過程而不是通過期望執行該過程，則沒有實現將要做什麼。

我的腳本中有以下程式碼：

#!/usr/bin/expect
set exp_internal 1

set timeout 30
set java [lindex $argv 0];
set installer [lindex $argv 1];

spawn $java -jar $installer -console

expect {
       "*More*" { send " "; exp_continue }
       "Press 1 to accept, 2 to reject, 3 to redisplay" { send "1\r" }
}

expect "Select the installation path:*" { send "/opt/pentaho8.3\r" }

expect "Press 1 to continue, 2 to quit, 3 to redisplay\r\n" { send "1\r" }

close
exit

當我按如下方式執行腳本時：

$ sudo /usr/bin/expect -d install-pentaho.expect /usr/java/jdk1.8.0_261/bin/java pentaho-server-manual-ee-8.3.0.0-371/installer.jar

它按預期執行，除了最後幾行：

send: sending "/opt/pentaho8.3\r" to { exp6 }

expect: does "" (spawn_id exp6) match glob pattern "Press 1 to continue, 2 to quit, 3 to redisplay\r\n"? no
/opt/pentaho8.3

expect: does "/opt/pentaho8.3\r\r\n" (spawn_id exp6) match glob pattern "Press 1 to continue, 2 to quit, 3 to redisplay\r\n"? no

Press 1 to continue, 2 to quit, 3 to redisplay

   expect: does "/opt/pentaho8.3\r\r\n\r\nPress 1 to continue, 2 to quit, 3 to redisplay\r\n" (spawn_id exp6) match glob pattern "Press 1 to continue, 2 to quit, 3 to redisplay\r\n"? yes
   expect: set expect_out(0,string) "Press 1 to continue, 2 to quit, 3 to redisplay\r\n"
   expect: set expect_out(spawn_id) "exp6"
   expect: set expect_out(buffer) "/opt/pentaho8.3\r\r\n\r\nPress 1 to continue, 2 to quit, 3 to redisplay\r\n"
   send: sending "1\r" to { exp6 }

任何人都知道為什麼期望發送的“1”被忽略？生成的程序似乎正在退出，忽略發送的“1”。

以下是預期的輸出，即我sudo /usr/java/jdk1.8.0_261/bin/java -jar pentaho-server-manual-ee-8.3.0.0-371/installer.jar手動執行 -console 時得到的輸出：

Select the installation path:  [/root/pentaho/pentaho-server-manual-ee-8.3.0.0-371]
/opt/pentaho8.3

Press 1 to continue, 2 to quit, 3 to redisplay
1

────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
Installation
────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────

[ Starting to unpack ]
[ Processing package: Base (1/1) ]
[ Unpacking finished ]

────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
Installation Finished
────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────

Installation was successful
Application installed on /opt/pentaho8.3
[ Console installation done ]

關於為什麼沒有發生安裝以及期望腳本過早退出的任何想法？

問題是您正在關閉與 Java 程序的連接，因此當它寫入一些消息時，它會獲得 SIGPIPE 並退出。

更改close為expect eof（如果安裝時間超過 30 秒，則可能調整超時）。這使得expect等待程序完成（或至少直到它關閉標準輸出）。

引用自：https://unix.stackexchange.com/questions/610612