我使用以下命令安装了Google Cloud SDK：
curl https://sdk.cloud.google.com/ | bash
我认为装置进展顺利。
当我尝试通过执行dev_appserver.py appengine-try-php在本地运行应用时，找不到dev_appserver.py。
我希望“dev_appserver”位于SDK的顶级目录或bin目录中，但它不存在，那么它在哪里？
以下是这两个目录的内容。
Steves-MacBook-Pro:google-cloud-sdk stong$ ls -l
total 104
-rw-r--r-- 1 stong staff 982 Nov 3 11:44 LICENSE
-rw-r--r-- 1 stong staff 696 Nov 3 11:44 README
-rw-r--r-- 1 stong staff 12718 Nov 3 11:44 RELEASE_NOTES
drwxr-xr-x 8 stong staff 272 Sep 10 06:25 bin
-rw-r--r-- 1 stong staff 1602 Nov 3 11:44 completion.bash.inc
-rw-r--r-- 1 stong staff 1651 Nov 3 11:44 completion.zsh.inc
drwxr-xr-x 4 stong staff 136 Jan 1 1980 help
-rwxr-xr-x 1 stong staff 880 Nov 3 11:44 install.bat
-rwxr-xr-x 1 stong staff 3009 Nov 3 11:44 install.sh
drwxr-xr-x 21 stong staff 714 Jan 1 1980 lib
-rw-r--r-- 1 stong staff 296 Nov 3 11:44 path.bash.inc
-rw-r--r-- 1 stong staff 278 Nov 3 11:44 path.zsh.inc
drwxr-xr-x 5 stong staff 170 Aug 12 14:03 platform
-rw-r--r-- 1 stong staff 39 Nov 8 22:45 properties
Steves-MacBook-Pro:google-cloud-sdk stong$ ls -l bin
total 40
drwxr-xr-x 14 stong staff 476 Aug 12 14:03 bootstrapping
-rwxr-xr-x 1 stong staff 2607 Sep 10 06:25 bq
-rwxr-xr-x 1 stong staff 2796 Oct 20 10:17 gcloud
-rwxr-xr-x 1 stong staff 2611 Sep 10 06:25 gcutil
-rwxr-xr-x 1 stong staff 2644 Oct 20 10:17 git-credential-gcloud.sh
-rwxr-xr-x 1 stong staff 2643 Sep 10 06:25 gsutil