title: not able to find executable/binary file after "go build" command
body: <p>I am new to golang and I have a single package go file "hello_world.go" which I am compiling via "go build hello_world.go".
  After this I expect to see executable "hello_world". But I donot see it.</p>
  
  <p>I tried options -x and -v with "go build " and below is the output</p>
  
  <pre><code>go build -x -v hello_world.go
  WORK=/tmp/go-build697702511
  command-line-arguments
  mkdir -p $WORK/command-line-arguments/_obj/
  mkdir -p $WORK/
  cd /home/vignesh/exercism/go/hello-world
  /usr/local/go/pkg/tool/linux_amd64/compile -o $WORK/command-line- arguments.a -trimpath $WORK -goversion go1.9.2 -p command-line-arguments -complete -buildid 1d40767f999b0c5cb646b061911455ddde0101d2 -D _/home/vignesh/exercism/go/hello-world -I $WORK -pack ./hello_world.go
  </code></pre>
  
  <p>below  is the  content  of  my working directory after above two "go build" operations</p>
  
  <pre><code>-rw------- 1 vignesh vignesh  208 Jul 17 20:50 .solution.json
  -rw-rw-r-- 1 vignesh vignesh 1451 Jul 17 20:50 README.md
  -rw-rw-r-- 1 vignesh vignesh 1311 Jul 17 20:50 hello_test.go_bkp
  drwxr-xr-x 4 vignesh vignesh 4096 Jul 18 18:27 ..
  -rw-rw-r-- 1 vignesh vignesh 1311 Jul 18 20:27 hello_test.go
  -rw-rw-r-- 1 vignesh vignesh  684 Jul 18 20:29 hello_world.go
  drwxr-xr-x 2 vignesh vignesh 4096 Jul 18 20:57 .
  </code></pre>
  
  <p>I then tried "go build -o aaa hello_world.go" which generated binary file "aaa", which on execution gave following errors:</p>
  
  <pre><code>./aaa: line 1: syntax error near unexpected token `newline'
  ./aaa: line 1: `!&lt;arch&gt;'
  </code></pre>
  
  <p>below is the output of  "go  env "</p>
  
  <pre><code>GOARCH="amd64"
  GOBIN=""
  GOEXE=""
  GOHOSTARCH="amd64"
  GOHOSTOS="linux"
  GOOS="linux"
  GOPATH="/home/vignesh/exercism/go"
  GORACE=""
  GOROOT="/usr/local/go"
  GOTOOLDIR="/usr/local/go/pkg/tool/linux_amd64"
  GCCGO="gccgo"
  CC="gcc"
  GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build845978294=/tmp/go-build -gno-record-gcc-switches"
  CXX="g++"
  CGO_ENABLED="1"
  CGO_CFLAGS="-g -O2"
  CGO_CPPFLAGS=""
  CGO_CXXFLAGS="-g -O2"
  CGO_FFLAGS="-g -O2"
  CGO_LDFLAGS="-g -O2"
  PKG_CONFIG="pkg-config"
  </code></pre>
  
  <p>Kindly help me with a fix or any sugestions to debug this issue.</p>
  
  <p>Thanks in advance</p>