added proxy settings

operation_system/unix/curl.md

@@ -1,23 +1,33 @@
-# Add a cacert
+# How To
+
+## Add proxy
+
+```
+#best is to do this in the .bashrc or initial shell setup
+export http_proxy=http://<ip>[:<port>]
+export https_proxy=http://<ip>[:<port>]
+```
+
+## Add a cacert
 
 ```
 cd /etc/ssl/certs
 wget http://curl.haxx.se/ca/cacert.pem
 ```
 
-# force usage of ssl version 3
+## Force usage of ssl version 3
 
 ```
 curl -3 https://foo.bar
 ```
 
-# allow insecure ssl
+## Fllow insecure ssl
 
 ```
 curl [-k|--insecure] <url>
 ```
 
-# add http status code output to response
+## Add http status code output to response
 
 ```
 #http://superuser.com/questions/272265/getting-curl-to-output-http-status-code
@@ -26,6 +36,6 @@ curl -i <url>
 curl -sw '\nhttp status code: %{http_code}' <url>
 ```
 
-# links
+# Links
 
 * http://curl.haxx.se/docs/httpscripting.html