Fix telegraf example arguments (#2788)

Many of the examples provided within documentation are using a single
dash for the command line arguments, but the telegraf executable
explicitly has two dashes.

There are also some inconsistencies with the ordering of the command
line argument examples.  I've ordered them so that the examples will
show: config, config-directory, input-filter, test

plugins/inputs/EXAMPLE_README.md

@@ -45,7 +45,7 @@ SELECT max(field1), mean(field1), min(field1) FROM measurement1 WHERE tag1=bar A
 ### Example Output:
 
 ```
-$ telegraf -input-filter example -test
+$ telegraf --input-filter example --test
 measurement1,tag1=foo,tag2=bar field1=1i,field2=2.1 1453831884664956455
 measurement2,tag1=foo,tag2=bar,tag3=baz field3=1i 1453831884664956455
 ```

plugins/inputs/bcache/README.md

@@ -70,7 +70,7 @@ Using this configuration:
 When run with:
 
 ```
-./telegraf -config telegraf.conf -input-filter bcache -test
+./telegraf --config telegraf.conf --input-filter bcache --test
 ```
 
 It produces:

plugins/inputs/ceph/README.md

@@ -200,7 +200,7 @@ All measurements will have the following tags:
 *Admin Socket Stats*
 
 <pre>
-telegraf -test -config /etc/telegraf/telegraf.conf -config-directory /etc/telegraf/telegraf.d  -input-filter ceph
+telegraf --config /etc/telegraf/telegraf.conf --config-directory /etc/telegraf/telegraf.d --input-filter ceph --test
 * Plugin: ceph, Collection 1
 > ceph,collection=paxos, id=node-2,role=openstack,type=mon accept_timeout=0,begin=14931264,begin_bytes.avgcount=14931264,begin_bytes.sum=180309683362,begin_keys.avgcount=0,begin_keys.sum=0,begin_latency.avgcount=14931264,begin_latency.sum=9293.29589,collect=1,collect_bytes.avgcount=1,collect_bytes.sum=24,collect_keys.avgcount=1,collect_keys.sum=1,collect_latency.avgcount=1,collect_latency.sum=0.00028,collect_timeout=0,collect_uncommitted=0,commit=14931264,commit_bytes.avgcount=0,commit_bytes.sum=0,commit_keys.avgcount=0,commit_keys.sum=0,commit_latency.avgcount=0,commit_latency.sum=0,lease_ack_timeout=0,lease_timeout=0,new_pn=0,new_pn_latency.avgcount=0,new_pn_latency.sum=0,refresh=14931264,refresh_latency.avgcount=14931264,refresh_latency.sum=8706.98498,restart=4,share_state=0,share_state_bytes.avgcount=0,share_state_bytes.sum=0,share_state_keys.avgcount=0,share_state_keys.sum=0,start_leader=0,start_peon=1,store_state=14931264,store_state_bytes.avgcount=14931264,store_state_bytes.sum=353119959211,store_state_keys.avgcount=14931264,store_state_keys.sum=289807523,store_state_latency.avgcount=14931264,store_state_latency.sum=10952.835724 1462821234814535148
 > ceph,collection=throttle-mon_client_bytes,id=node-2,type=mon get=1413017,get_or_fail_fail=0,get_or_fail_success=0,get_sum=71211705,max=104857600,put=1413013,put_sum=71211459,take=0,take_sum=0,val=246,wait.avgcount=0,wait.sum=0 1462821234814737219

plugins/inputs/chrony/README.md

@@ -82,7 +82,7 @@ Delete second or Not synchronised.
 ### Example Output:
 
 ```
-$ telegraf -config telegraf.conf -input-filter chrony -test
+$ telegraf --config telegraf.conf --input-filter chrony --test
 * Plugin: chrony, Collection 1
 > chrony,leap_status=normal,reference_id=192.168.1.1,stratum=3 frequency=-35.657,last_offset=-0.000013616,residual_freq=-0,rms_offset=0.000027073,root_delay=0.000644,root_dispersion=0.003444,skew=0.001,update_interval=1031.2 1463750789687639161
 ```

plugins/inputs/cloudwatch/README.md

@@ -145,6 +145,6 @@ Tag Dimension names are represented in [snake case](https://en.wikipedia.org/wik
 ### Example Output:
 
 ```
-$ ./telegraf -config telegraf.conf -input-filter cloudwatch -test
+$ ./telegraf --config telegraf.conf --input-filter cloudwatch --test
 > cloudwatch_aws_elb,load_balancer_name=p-example,region=us-east-1,unit=seconds latency_average=0.004810798017284538,latency_maximum=0.1100282669067383,latency_minimum=0.0006084442138671875,latency_sample_count=4029,latency_sum=19.382705211639404 1459542420000000000
 ```

plugins/inputs/conntrack/README.md

@@ -51,6 +51,6 @@ This input does not use tags.
 ### Example Output:
 
 ```
-$ ./telegraf -config telegraf.conf -input-filter conntrack -test
+$ ./telegraf --config telegraf.conf --input-filter conntrack --test
 conntrack,host=myhost ip_conntrack_count=2,ip_conntrack_max=262144 1461620427667995735
 ```

plugins/inputs/consul/README.md

@@ -46,7 +46,7 @@ the health check at this sample.
 ## Example output
 
 ```
-$ telegraf --config ./telegraf.conf -input-filter consul -test
+$ telegraf --config ./telegraf.conf --input-filter consul --test
 * Plugin: consul, Collection 1
 > consul_health_checks,host=wolfpit,node=consul-server-node,check_id="serfHealth" check_name="Serf Health Status",service_id="",status="passing",passing=1i,critical=0i,warning=0i 1464698464486439902
 > consul_health_checks,host=wolfpit,node=consul-server-node,service_name=www.example.com,check_id="service:www-example-com.test01" check_name="Service 'www.example.com' check",service_id="www-example-com.test01",status="critical",passing=0i,critical=1i,warning=0i 1464698464486519036

plugins/inputs/couchbase/README.md

@@ -48,7 +48,7 @@ Fields:
 ## Example output
 
 ```
-$ telegraf -config telegraf.conf -input-filter couchbase -test
+$ telegraf --config telegraf.conf --input-filter couchbase --test
 * Plugin: couchbase, Collection 1
 > couchbase_node,cluster=https://couchbase-0.example.com/,hostname=172.16.10.187:8091 memory_free=22927384576,memory_total=64424656896 1458381183695864929
 > couchbase_node,cluster=https://couchbase-0.example.com/,hostname=172.16.10.65:8091 memory_free=23520161792,memory_total=64424656896 1458381183695972112

plugins/inputs/couchdb/README.md

@@ -63,7 +63,7 @@ httpd statistics:
 ### Example output:
 
 ```
-➜  telegraf git:(master) ✗ ./telegraf -config ./config.conf  -input-filter couchdb -test
+➜  telegraf git:(master) ✗ ./telegraf --config ./config.conf  --input-filter couchdb --test
 * Plugin: couchdb,
  Collection 1
 > couchdb,server=http://localhost:5984/_stats couchdb_auth_cache_hits_current=0,

plugins/inputs/dns_query/README.md

@@ -46,6 +46,6 @@ For querying more than one record type make:
 ### Example output:
 
 ```
-./telegraf -config telegraf.conf -test -input-filter dns_query -test
+./telegraf --config telegraf.conf --input-filter dns_query --test
 > dns_query,domain=mjasion.pl,record_type=A,server=8.8.8.8 query_time_ms=67.189842 1456082743585760680
 ```

plugins/inputs/docker/README.md

@@ -167,7 +167,7 @@ based on the availability of per-cpu stats on your system.
 ### Example Output:
 
 ```
-% ./telegraf -config ~/ws/telegraf.conf -input-filter docker -test
+% ./telegraf --config ~/ws/telegraf.conf --input-filter docker --test
 * Plugin: docker, Collection 1
 > docker n_cpus=8i 1456926671065383978
 > docker n_used_file_descriptors=15i 1456926671065383978

plugins/inputs/dovecot/README.md

@@ -62,7 +62,7 @@ domains. You can read Dovecot's documentation
 ### Example Output:
 
 ```
-telegraf -config t.cfg -input-filter dovecot -test
+telegraf --config t.cfg --input-filter dovecot --test
 * Plugin: dovecot, Collection 1
 > dovecot,ip=192.168.0.1,server=dovecot-1.domain.test,type=ip clock_time=0,disk_input=0i,disk_output=0i,invol_cs=0i,last_update="2016-04-08 10:59:47.000208479 +0200 CEST",mail_cache_hits=0i,mail_lookup_attr=0i,mail_lookup_path=0i,mail_read_bytes=0i,mail_read_count=0i,maj_faults=0i,min_faults=0i,num_cmds=12i,num_connected_sessions=0i,num_logins=6i,read_bytes=0i,read_count=0i,reset_timestamp="2016-04-08 10:33:34 +0200 CEST",sys_cpu=0,user_cpu=0,vol_cs=0i,write_bytes=0i,write_count=0i 1460106251633824223
 * Plugin: dovecot, Collection 1
@@ -71,4 +71,4 @@ telegraf -config t.cfg -input-filter dovecot -test
 > dovecot,domain=domain.test,server=dovecot-1.domain.test,type=domain clock_time=100896189179847.7,disk_input=6467588263936i,disk_output=17933680439296i,invol_cs=1194808498i,last_update="2016-04-08 11:04:08.000377367 +0200 CEST",mail_cache_hits=46455781i,mail_lookup_attr=0i,mail_lookup_path=571490i,mail_read_bytes=79287033067i,mail_read_count=491243i,maj_faults=16992i,min_faults=1278442541i,num_cmds=606005i,num_connected_sessions=6597i,num_logins=166381i,read_bytes=30231409780721i,read_count=1624912080i,reset_timestamp="2016-04-08 10:28:45 +0200 CEST",sys_cpu=156440.372,user_cpu=216676.476,vol_cs=2749291157i,write_bytes=17097106707594i,write_count=944448998i 1460106261639672622
 * Plugin: dovecot, Collection 1
 > dovecot,server=dovecot-1.domain.test,type=global clock_time=101196971074203.94,disk_input=6493168218112i,disk_output=17978638815232i,invol_cs=1198855447i,last_update="2016-04-08 11:04:13.000379245 +0200 CEST",mail_cache_hits=68192209i,mail_lookup_attr=0i,mail_lookup_path=653861i,mail_read_bytes=86705151847i,mail_read_count=566125i,maj_faults=17208i,min_faults=1286179702i,num_cmds=917469i,num_connected_sessions=8896i,num_logins=174827i,read_bytes=30327690466186i,read_count=1772396430i,reset_timestamp="2016-04-08 10:28:45 +0200 CEST",sys_cpu=157965.692,user_cpu=219337.48,vol_cs=2827615787i,write_bytes=17150837661940i,write_count=992653220i 1460106266642153907
-```
\ No newline at end of file
+```

plugins/inputs/filestat/README.md

@@ -30,7 +30,7 @@ The filestat plugin gathers metrics about file existence, size, and other stats.
 ### Example Output:
 
 ```
-$ telegraf -config /etc/telegraf/telegraf.conf -input-filter filestat -test
+$ telegraf --config /etc/telegraf/telegraf.conf --input-filter filestat --test
 * Plugin: filestat, Collection 1
 > filestat,file=/tmp/foo/bar,host=tyrion exists=0i 1461203374493128216
 > filestat,file=/Users/sparrc/ws/telegraf.conf,host=tyrion exists=1i,size=47894i 1461203374493199335

plugins/inputs/http_response/README.md

@@ -51,6 +51,6 @@ This input plugin will test HTTP/HTTPS connections.
 ### Example Output:
 
 ```
-$ ./telegraf -config telegraf.conf -input-filter http_response -test
+$ ./telegraf --config telegraf.conf --input-filter http_response --test
 http_response,method=GET,server=http://www.github.com http_response_code=200i,response_time=6.223266528 1459419354977857955
 ```

plugins/inputs/influxdb/README.md

@@ -74,7 +74,7 @@ InfluxDB-formatted endpoints. See below for more information.
 ### Example Output:
 
 ```
-telegraf -config ~/ws/telegraf.conf -input-filter influxdb -test
+telegraf --config ~/ws/telegraf.conf --input-filter influxdb --test
 * Plugin: influxdb, Collection 1
 > influxdb_database,database=_internal,host=tyrion,url=http://localhost:8086/debug/vars numMeasurements=10,numSeries=29 1463590500247354636
 > influxdb_httpd,bind=:8086,host=tyrion,url=http://localhost:8086/debug/vars req=7,reqActive=1,reqDurationNs=14227734 1463590500247354636

plugins/inputs/interrupts/README.md

@@ -26,7 +26,7 @@ There are two measurements reported by this plugin.
 
 ### Example Output
 ```
-./telegraf -config ~/interrupts_config.conf -test
+./telegraf --config ~/interrupts_config.conf --test
 * Plugin: inputs.interrupts, Collection 1
 > interrupts,irq=0,type=IO-APIC,device=2-edge\ timer,host=hostname CPU0=23i,total=23i 1489346531000000000
 > interrupts,irq=1,host=hostname,type=IO-APIC,device=1-edge\ i8042 CPU0=9i,total=9i 1489346531000000000

plugins/inputs/iptables/README.md

@@ -78,7 +78,7 @@ pkts bytes target     prot opt in     out     source               destination
 ```
 
 ```
-$ ./telegraf -config telegraf.conf -input-filter iptables -test
+$ ./telegraf --config telegraf.conf --input-filter iptables --test
 iptables,table=filter,chain=INPUT,ruleid=ssh pkts=100i,bytes=1024i 1453831884664956455
 iptables,table=filter,chain=INPUT,ruleid=httpd pkts=42i,bytes=2048i 1453831884664956455
 ```

plugins/inputs/kapacitor/README.md

@@ -77,7 +77,7 @@ these values.
 ### Example Output:
 
 ```
-$ telegraf -config /etc/telegraf.conf -input-filter kapacitor -test
+$ telegraf --config /etc/telegraf.conf --input-filter kapacitor --test
 * Plugin: inputs.kapacitor, Collection 1
 > kapacitor_memstats,host=hostname.local,kap_version=1.1.0~rc2,url=http://localhost:9092/kapacitor/v1/debug/vars alloc_bytes=6974808i,buck_hash_sys_bytes=1452609i,frees=207281i,gc_sys_bytes=802816i,gcc_pu_fraction=0.00004693548939673313,heap_alloc_bytes=6974808i,heap_idle_bytes=6742016i,heap_in_use_bytes=9183232i,heap_objects=23216i,heap_released_bytes=0i,heap_sys_bytes=15925248i,last_gc_ns=1478791460012676997i,lookups=88i,mallocs=230497i,mcache_in_use_bytes=9600i,mcache_sys_bytes=16384i,mspan_in_use_bytes=98560i,mspan_sys_bytes=131072i,next_gc_ns=11467528i,num_gc=8i,other_sys_bytes=2236087i,pause_total_ns=2994110i,stack_in_use_bytes=1900544i,stack_sys_bytes=1900544i,sys_bytes=22464760i,total_alloc_bytes=35023600i 1478791462000000000
 > kapacitor,host=hostname.local,kap_version=1.1.0~rc2,url=http://localhost:9092/kapacitor/v1/debug/vars num_enabled_tasks=5i,num_subscriptions=5i,num_tasks=5i 1478791462000000000

plugins/inputs/memcached/README.md

@@ -64,6 +64,6 @@ SELECT mean(get_hits) / mean(cmd_get) as get_ratio, mean(get_misses) / mean(cmd_
 ### Example Output:
 
 ```
-$ ./telegraf -config telegraf.conf -input-filter memcached -test
+$ ./telegraf --config telegraf.conf --input-filter memcached --test
 memcached,server=localhost:11211 get_hits=1,get_misses=2,evictions=0,limit_maxbytes=0,bytes=10,uptime=3600,curr_items=2,total_items=2,curr_connections=1,total_connections=2,connection_structures=1,cmd_get=2,cmd_set=1,delete_hits=0,delete_misses=0,incr_hits=0,incr_misses=0,decr_hits=0,decr_misses=0,cas_hits=0,cas_misses=0,bytes_read=10,bytes_written=10,threads=1,conn_yields=0 1453831884664956455
 ```

plugins/inputs/mesos/README.md

@@ -243,7 +243,7 @@ Mesos slave metric groups
 
 ### Example Output:
 ```
-$ telegraf -config ~/mesos.conf -input-filter mesos -test
+$ telegraf --config ~/mesos.conf --input-filter mesos --test
 * Plugin: mesos, Collection 1
 mesos,role=master,state=leader,host=172.17.8.102,server=172.17.8.101
 allocator/event_queue_dispatches=0,master/cpus_percent=0,