[英]Send multiple response to interactive Linux command using expect
我有以下任务执行。
步骤2-5应该循环运行,直到.txt文件中的所有ID都结束,步骤5将选择“否”或退出。
尝试Shell / expect中的代码,但有时它会从列表中跳过ID或显示空白值,有时会在运行时出现崩溃并抛出错误:
*child process exited abnormally
while executing
"exec cat output.txt | grep -i -B2 "rows selected" > result.txt"
(file "./cmp-test.sh" line 31)*
这是代码:
exec echo "" > output.txt
log_file [pwd]/output.txt
set f [open list.txt r]
# list is the file name contain ID's
set idlist [ split [ read $f ] "\n" ]
close $f
send_user "\n Running script.. \n"
spawn <abc command>
foreach ids $idlist {
expect {
"run? " { send "1\r" }
}
expect {
"ACDIG: " { send "$ids\r" }
}
expect {
"n)?" { send "y\r" }
}
}
exec cat output.txt | grep -i -B2 "rows selected" > result.txt
你可能不需要期望:
while read -r id; do
abc << "answers"
1
yes
$id
y
answers
done < ids.txt
要么
while read -r id; do
printf "%s\n" 1 yes "$id" y | abc
done < ids.txt
您正在使child process exited abnormally
退出,因为当grep
在其输入中找不到给定的模式时, grep
退出非零状态:这是一个“正常”的grep退出状态,但因为它非零,所以Tcl /期待发生错误。
尝试在foreach
循环中包含spawn
。 例如:
#!usr/bin/expect
exec echo "" > output.txt
log_file -a output.txt
set f [open list.txt r]
set idlist [read $f]
close $f
send_user "\n Running script.. \n"
foreach ids $idlist {
spawn <abc command>
expect "run? "
send "1\r"
expect "ACDIG: "
send "$ids\r"
expect "n)?"
send "y\r"
}
log_file
catch {exec cat output.txt | grep -i -B2 "rows selected" > result.txt}
希望你的第二个expect
额外的空白不会导致任何问题。
此外,您是否在脚本结束时关闭了log_file
进程?
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