free port in linux
netstat -tulnap // list all ports and processes
netstat -anp|grep "port_number" // show port details
sudo fuser -k Port_Number/tcp // free the port needed
# or
lsof -n -i :'port-number' | grep LISTEN // get port details
# sample response: java 4744 (PID) test 364u IP0 asdasdasda 0t0 TCP *:port-number (LISTEN)
kill -9 PID // free portbootstrap select input
<div class="form-group">
<label for="exampleFormControlSelect1">Example select</label>
<select class="form-control" id="exampleFormControlSelect1">
<option>1</option>
<option>2</option>
<option>3</option>
<option>4</option>
<option>5</option>
</select>
</div>
<div class="form-group">
<label for="exampleFormControlSelect2">Example multiple select</label>
<select multiple class="form-control" id="exampleFormControlSelect2">
<option>1</option>
<option>2</option>
<option>3</option>
<option>4</option>
<option>5</option>
</select>
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