Use of exclamation marks and quotes in shells

The online environment requires regular cleanup of the cache, as follows:

[Email protected] scripts]# Curl http://10.238.74.31/irm/manualDataSyncPage!synchronizeCrmGroupCustomerInfo.html? Username=004&password=zhzg-123

-bash:!synchronizecrmgroupcustomerinfo.html? Username=004:event not found

“！ "In a daily command, you can use the execution of a line of content as a history record to invoke it, and a special character in the shell."

In the Execute Curl "http://10.238.74.31/irm/manualDataSyncPage!synchronizeCrmGroupCustomerInfo.html?" Username=004&password=zhzg-123 "In the process, found"! "cannot be parsed properly, plus the escape backslash" \ "is useless.

[Email protected] scripts]# Curl http://10.238.74.31/irm/manualdatasyncpage\!synchronizecrmgroupcustomerinfo.html ? Username=004&password=zhzg-123

-bash:!event not found

After finding it in "! "Before and after adding a space to solve this problem, but is not perfect, because the input file characters are also added to the space, the feeling occupies a longer place, the phenomenon is as follows:

[[email protected] scripts]# Curl "Http://10.238.74.31/irm/manualDataSyncPage! Synchronizecrmgroupcustomerinfo.htmlme=004&password=zhzg-123 "

Finally try to use double quotation marks and backslashes at the same time, perfect solve the problem! Specific as follows:

[[email protected] scripts]# Curl "Http://10.238.74.31/irm/manualDataSyncPage" \! " Syncronizecrmgroupcustomerinfo.html? Username=004&password=zhzg-123 "

<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>

This article is from the "Lanzhou Linux operation and Maintenance" blog, please be sure to keep this source http://linuxzkq.blog.51cto.com/9379412/1827401

Use of exclamation marks and quotes in shells