[update] update compile script usage

onetensor/compile.sh

@@ -1,8 +1,17 @@
 #!/bin/bash
 
-if [ "$#" -le 1 ] ; then
-  echo "Usage: $0 fileExec fileSrc"
-  echo "for example: $0 xtest tesTensor.c" >&2
+if [ "$#" -le 0 ] ; then
+  echo "Usage: $0 fileSrc"
+  echo "for example: $0 tesTensor.c" >&2
 else
-gcc -o $1 $2 -W -I../link_repo_ytest
+foo=$1
+path=${foo%/*}
+#To get: /tmp/my.dir (like dirname)
+file=${foo##*/}
+#To get: filename.tar.gz (like basename)
+base=${file%%.*}
+echo "base = $base"
+#To get: filename
+ext=${file#*.}
+gcc -o xtest_$base $1 -W -I../link_repo_ytest
 fi