我正在尝试在Git中创建一个预提交钩子，它将检查任何调试代码并提示用户修复它。我有一个正在使用的正则表达式（忽略它不会排除多行注释中出现的事实！）：
grep -IiRn --exclude-dir={node_modules,vendor,public,lib,contrib} --include=\*.{module,inc,install,php,js} -P '^\s*(?!\/\/)\s*(dpm\(|dsm\(|console.log\()' /path/to/code/
这在我在控制台中正常运行时工作正常，但是当我在可执行.sh脚本中尝试它时，它什么都不做。以下都没有对我有用：
#!/bin/sh
grep ...
MYVAR =`grep ...` # Note the backticks!
echo $MYVAR
MYVAR =$(grep ...)
echo $MYVAR
MYVAR ="`grep ...`"
echo $MYVAR
我尝试使用Python和os.system()，但这也没有做任何事情。它似乎没有STDOUT。可能有一些显而易见的东西我不知道但是我处于松散状态。
任何帮助将不胜感激！感谢。
这是确切的脚本，即使它处于尽可能早的阶段，因为无法实际执行第一位。我隐藏了确切的文件夹名称，因为最好不要在SO上分享我公司的代码库;）
#!/bin/bash
echo "Test!"
ONE=`grep -IiRn --exclude-dir={node_modules,vendor,public,lib,contrib} --include=\*.{module,inc,install,php,js} -P '^\s*(?!\/\/)\s*(dpm\(|dsm\(|console.log\()' /company/projects/company/www/sites/all/modules/custom/`
TWO=$(grep -IiRn --exclude-dir={node_modules,vendor,public,lib,contrib} --include=\*.{coffee} -P '^\s*(?!\#)\s*(dpm\(|dsm\(|console.log)' /company/projects/company/www/sites/all/modules/custom/)
echo $ONE
echo "$TWO"
...并且正在运行bash -x pre-commit返回：
ubuntu@ip-12-34-56-78:/company/projects/company/scripts$ bash -x pre-commit
+ echo 'Test!'
Test!
++ grep -IiRn --exclude-dir=node_modules --exclude-dir=vendor --exclude-dir=public --exclude-dir=lib --exclude-dir=contrib '--include=*.module' '--include=*.inc' '--include=*.install' '--include=*.php' '--include=*.js' -P '^\s*(?!\/\/)\s*(dpm\(|dsm\(|console.log\()' /company/projects/company/www/sites/all/modules/custom/
+ ONE='/company/projects/company/www/sites/all/modules/custom/some_module/some_module.report.inc:594: dsm('\''test'\'');
/company/projects/company/www/sites/all/modules/custom/goals_app/goals_app.module:170: console.log(e.stack);
/company/projects/company/www/sites/all/modules/custom/company_usage_reports/js/script.js:300: console.log('\''fetch success'\'');
/company/projects/company/www/sites/all/modules/custom/another_module/js/another_module_change_workgroup.js:19: console.log('\''wtf?'\'');
/company/projects/company/www/sites/all/modules/custom/another_module/js/another_module_reorder_table.js:33: console.log(resp);
/company/projects/company/www/sites/all/modules/custom/another_module/js/another_module_reorder_table.js:39: console.log(ui.placeholder);
/company/projects/company/www/sites/all/modules/custom/another_module/js/another_module_goal_form.js:4: console.log($( ".required" ));
/company/projects/company/www/sites/all/modules/custom/another_module/js/another_module_reorder.js:40: console.log(resp);
/company/projects/company/www/sites/all/modules/custom/company_goals/js/views/goal-list.js:87: console.log(data);'
++ grep -IiRn --exclude-dir=node_modules --exclude-dir=vendor --exclude-dir=public --exclude-dir=lib --exclude-dir=contrib '--include=*.{coffee}' -P '^\s*(?!\#)\s*(dpm\(|dsm\(|console.log)' /company/projects/company/www/sites/all/modules/custom/
+ TWO=
+ echo /company/projects/company/www/sites/all/modules/custom/some_module/some_module.report.inc:594: 'dsm('\''test'\'');' /company/projects/company/www/sites/all/modules/custom/goals_app/goals_app.module:170: 'console.log(e.stack);' /company/projects/company/www/sites/all/modules/custom/company_usage_reports/js/script.js:300: 'console.log('\''fetch' 'success'\'');' /company/projects/company/www/sites/all/modules/custom/another_module/js/another_module_change_workgroup.js:19: 'console.log('\''wtf?'\'');' /company/projects/company/www/sites/all/modules/custom/another_module/js/another_module_reorder_table.js:33: 'console.log(resp);' /company/projects/company/www/sites/all/modules/custom/another_module/js/another_module_reorder_table.js:39: 'console.log(ui.placeholder);' /company/projects/company/www/sites/all/modules/custom/another_module/js/another_module_goal_form.js:4: 'console.log($(' '".required"' '));' /company/projects/company/www/sites/all/modules/custom/another_module/js/another_module_reorder.js:40: 'console.log(resp);' /company/projects/company/www/sites/all/modules/custom/company_goals/js/views/goal-list.js:87: 'console.log(data);'
/company/projects/company/www/sites/all/modules/custom/some_module/some_module.report.inc:594: dsm('test'); /company/projects/company/www/sites/all/modules/custom/goals_app/goals_app.module:170: console.log(e.stack); /company/projects/company/www/sites/all/modules/custom/company_usage_reports/js/script.js:300: console.log('fetch success'); /company/projects/company/www/sites/all/modules/custom/another_module/js/another_module_change_workgroup.js:19: console.log('wtf?'); /company/projects/company/www/sites/all/modules/custom/another_module/js/another_module_reorder_table.js:33: console.log(resp); /company/projects/company/www/sites/all/modules/custom/another_module/js/another_module_reorder_table.js:39: console.log(ui.placeholder); /company/projects/company/www/sites/all/modules/custom/another_module/js/another_module_goal_form.js:4: console.log($( ".required" )); /company/projects/company/www/sites/all/modules/custom/another_module/js/another_module_reorder.js:40: console.log(resp); /company/projects/company/www/sites/all/modules/custom/company_goals/js/views/goal-list.js:87: console.log(data);
+ echo ''
...但是在没有-x标志的情况下运行它仍然无效。
如果有人想知道，我的环境如下......
ubuntu@ip-12-34-56-78:~$ uname -a
Linux ip-12-34-56-78 3.2.0-31-virtual #50-Ubuntu SMP Fri Sep 7 16:36:36 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
ubuntu@ip-12-34-56-78:~$ whereis sh && whereis bash
sh: /bin/sh /bin/sh.distrib /usr/share/man/man1/sh.1.gz
bash: /bin/bash /etc/bash.bashrc /usr/share/man/man1/bash.1.gz
答案 0 :(得分：1)
在发布您正在运行的实际脚本之前，我无法肯定地说，但在您当前的代码段中
#!/bin/sh
根据您的操作系统，这可能是/bin/bash的链接，例如，它可能是实际的Bourne shell，does not support brace expansion（例如{a, b, c}）。即使/bin/sh确实指向您机器上的/bin/bash，如果您的shebang是#!/bin/sh（即说出你的意思），你应该只使用便携式结构。如果要在脚本中使用大括号扩展，请将shebang更改为#!/bin/bash。
如果你把
set -x
在脚本的顶部，它将打印有助于调试的详细信息。您也可以通过直接调用shell而不是修改脚本来完成此操作，例如
sh -x /path/to/script
或
bash -x /path/to/script
编辑：在Ubuntu上，/bin/sh是破折号，Debian Almquist shell。与Bourne shell一样，dash是相当严格的，并且不支持大括号扩展。有关可移植性问题和破折号的讨论，请参阅this page。