curl -u admin:geoserver -v -XPOST -H 'Content-type: text/xml'
 -d '<workspace><name>restProba</name></workspace>'
 http://localhost:8080/geoserver/rest/workspaces

curl -u admin:geoserver -v -XPOST -H 'Content-type: text/xml' -d
'<coverageStore><name>int_dec</name><enabled>true</enabled>
<type>GeoTIFF</type> <url>$home/int_dec.tif</url></coverageStore>'
"http://localhost:8080/geoserver/rest/workspaces/restProba/coveragestores?configure=all"

curl -u admin:geoserver -v -XPOST -H 'Content-Type: application/xml'
     -d '<coverageStore><name>int_dec</name><workspace>restProba</workspace>
         <enabled>true</enabled></coverageStore>'
         http://localhost:8080/geoserver/rest/workspaces/restProba/coveragestores

curl -u admin:geoserver -v -XPUT -H 'Content-type: text/plain'
     -d 'file:/$home/int_dec.tif'
      http://localhost:8080/geoserver/rest/workspaces/restProba/coveragestores/int_dec/external.geotiff?configure=first&coverageName=int_dec

curl -u admin:geoserver -v -XPOST -H 'Content-type: text/xml' -d
<coverageStore><name>int_dec</name><enabled>true</enabled>
<type>GeoTIFF</type> <url>$home/int_dec.tif</url></coverageStore>'
"http://localhost:8080/geoserver/rest/workspaces/restProba/coveragestores?configure=all"

curl -u admin:geoserver -v -XPOST -H 'Content-type: text/xml' -d
'<coverageStore><name>int_dec</name><enabled>true</enabled>
<type>GeoTIFF</type> <url>$home/int_dec.tif</url></coverageStore>'
"http://localhost:8080/geoserver/rest/workspaces/restProba/coveragestores?configure=all"

$ curl -v -u admin:geoserver -XPUT -H "Content-type: text/plain"
       -d "file:///path_to_directory/int_dec.tif"
       http://localhost:8080/geoserver/rest/workspaces/restProba/coveragestores/int_dec/external.geotiff