发送 GREP 命令失败

发送 GREP 命令失败

我是新手,想尝试让下面的脚本工作。脚本登录到服务器并读取配置文件 ($val 中的脚本) 以获取“cps”的值,然后显示总值,但在发送长“grep”命令时卡住了,我将其分成两部分:

set cmd1 "grep -A200 \"_ims\""   

set cmd2  { | grep -B3 "calledUserDescriptor"  | grep "cps" | grep -v "//cps" | awk '{ SUM += $3} END { print "total sip cps = "SUM}' >> cps.txt}

执行停止于:

exp_send "$cmd1 $val $cmd2\r"  

这里只执行了第一部分 ($cmd1 $val),第二部分($cmd2)作为单独的命令发送并在“|”处失败并显示消息:bash: syntax error near unexpected token |'

如果直接在 Linux 上执行,grep` 命令可以正常工作。我猜想 exp_send 行中有一个错误(语法?),但还没有弄清楚如何以正确的方式执行它,肯定有更好的方法。这是实际的脚本:

#!/usr/bin/expect -f  
set lnk1 "Traffic_ims.cfg"  
set cmd1 "grep -A200 \"_ims\""   
set cmd2  { | grep -B3 "calledUserDescriptor"  | grep "cps" | grep -v "//cps" | awk '{ SUM += $3} END { print "total sip cps = "SUM}' >> cps.txt}  

set file1 "/tmp/cps.txt"  
set cmd3 "cd /home/traffic/"  
set cmd4 "readlink"  
set passwd "xxxxx"  
log_user 1  
spawn rm -rf $file1  
spawn ssh [email protected]  
expect {  
-re ".*Are.*.*yes.*no.*" {  
send "yes\n"  
exp_continue  
}  
"*?assword:*" {  
send $passwd  
send "\n"  
}  
}  
expect "*\$ "  
exp_send "$cmd3\r"  
expect "$cmd3\r"  
expect -re $  
exp_send "$cmd4 $lnk1\r"  
expect "$cmd4 $lnk1\r"  
expect -re "(Titan.*)\r"  
set val $expect_out(0,string)  

exp_send "$cmd1 $val $cmd2\r"

expect -re "(.*)\r"  
set output [open "/tmp/cps.txt" "a+"]  
set outcome $expect_out(buffer)  
send "\r"  
puts $output $outcome  
close $output  

exp_send "exit \r"  
exit 0   

答案1

我认为我是对的:

expect -re "(Titan.*)\r"  
set val $expect_out(0,string)  

expect_out(0,string)将包含整个匹配项,而不仅仅是括号中的位。

尝试:

set val $expect_out(1,string)

仅选择与(第一组)括号中的模式匹配的内容。

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