shell中感叹号与引号用法

线上环境须要按期清理缓存,以下:
html

[root@LB scripts]# curl http://10.238.74.31/irm/manualDataSyncPage!synchronizeCrmGroupCustomerInfo.html?UserName=004&Password=ZHzg-123   shell

-bash: !synchronizeCrmGroupCustomerInfo.html?UserName=004: event not found缓存

  “!”在平常命令中能够做为调用history历史记录来使用执行某行内容,在shell里为特殊字符。bash

在执行curl "http://10.238.74.31/irm/manualDataSyncPage!synchronizeCrmGroupCustomerInfo.html?UserName=004&Password=ZHzg-123"的过程当中,发现“!”没法被正常解析,加上转义反斜杠“\”也没用。curl

[root@LB scripts]# curl http://10.238.74.31/irm/manualDataSyncPage\!synchronizeCrmGroupCustomerInfo.html?UserName=004&Password=ZHzg-123ide

-bash: !event not foundui

   后发如今“!”先后加入空格能够解决这个问题,但还不够完美,由于输入的文件字符也是加了空格后的,感受占用较长地方,现象以下:url

[root@LB scripts]# curl "http://10.238.74.31/irm/manualDataSyncPage ! synchronizeCrmGroupCustomerInfo.htmlme=004&Password=ZHzg-123"spa

   最后尝试双引号与反斜杠同时使用,完美解决问题!具体以下:htm

[root@LB scripts]# curl "http://10.238.74.31/irm/manualDataSyncPage"\!"syncronizeCrmGroupCustomerInfo.html?UserName=004&Password=ZHzg-123" 

<html>

<head>

<title>system.title</title>

<script>

var hexA0s = unescape(' %A0 %A0 %A0 %A0 %A0 %A0 %A0 %A0 %A0 %A0 %A0 %A0 %A0 %A0 %A0 %A0 %A0 %A0 %A0 %A0');

hexA0s = hexA0s + hexA0s + hexA0s + hexA0s;

hexA0s = hexA0s + hexA0s + hexA0s + hexA0s;

hexA0s = hexA0s + hexA0s + hexA0s + hexA0s;

document.title = 'system.title' + hexA0s + hexA0s;

hexA0s = null;

</script>

<meta http-equiv="Pragma" Content="No-cach"></meta>

<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"></meta>

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