我需要检查回购的一部分。这就是我的工作：
rm -rf root_dir
mkdir -p root_dir
svn co --depth empty https://some.repo/branches/branch1 root_dir
svn up --set-depth empty root_dir/level1
svn up --set-depth empty root_dir/level1/level2
svn up --set-depth empty root_dir/level1/level2/level3
svn up --set-depth infinity root_dir/level1/level2/level3/level4
当我以交互方式进行此操作时，一切似乎都没问题。但是当我将这些相同的行粘贴到脚本中并运行它时，.svn目录将添加到目录层次结构的每个级别。
$ svn --version
svn, version 1.9.4 (r1740329)
compiled May 26 2016, 12:44:27 on x86_64-redhat-linux-gnu
$ rpm -qi subversion
Name : subversion
Version : 1.9.4
Release : 2.fc23
Architecture: x86_64
Install Date: Thu Jan 19 20:35:00 2017
Group : Development/Tools
Size : 5245105
License : ASL 2.0
Signature : RSA/SHA256, Thu May 26 19:22:58 2016, Key ID 32474cf834ec9cba
Source RPM : subversion-1.9.4-2.fc23.src.rpm
Build Date : Thu May 26 15:25:52 2016
Build Host : buildvm-16.phx2.fedoraproject.org
Relocations : (not relocatable)
Packager : Fedora Project
Vendor : Fedora Project
URL : http://subversion.apache.org/
Summary : A Modern Concurrent Version Control System
Description :
Subversion is a concurrent version control system which enables one
or more users to collaborate in developing and maintaining a
hierarchy of files and directories while keeping a history of all
changes. Subversion only stores the differences between versions,
instead of every complete file. Subversion is intended to be a
compelling replacement for CVS.
问题：