Curl commands are commonly used

1 Get Return code: (only)

[[email protected] zabbix_agentd.conf.d]# curl-s--connect-timeout 20-w "%{http_code}"-o/dev/null www.baidu.com

200[[email protected] zabbix_agentd.conf.d]#

Detailed parameters

Curl

-S -s/--silent

Silent or Quiet mode.  Don ' t show progress meter or error messages. Makes Curl mute.

-I.

-W-w/--write-out <format>. variables is specified as%{variable_name}

-O -o/--output <file>

2 Return header information

Curl-i http://www.baidu.com

The effect of 3-s

See if there is a-s effect: You can see the progress output of those curl

[[Email protected] scripts]# curl -s -i 192.168.100.13:80 --connect-timeout  2 | sed -n  ' 1p '  http/1.1 200 ok[[email protected] scripts]#  curl  -I 192.168.100.13:80 --connect-timeout 2 | sed -n  ' 1p '      % Total    % Received % Xferd   average speed   time    time     time   Current                                   dload  upload   total   spent    left   speed  0   612    0     0     0     0      0      0 --:--:--  --:--:-- --:--:--     0http/1.1 200 ok

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Curl commands are commonly used