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Bash/sh - difference between && and ;
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I'm using && because a long time ago at the nearby computer:
root# pwd
/
root# cd /tnp/test; rm -rf *
cd: /tnp/test: No such file or directory
...
... and after a while ...
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^C
but not helped... ;)
cd /tnp/test && rm -rf * is safe... ;)
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rsync error: failed to set times on “/foo/bar”: Operation not permitted
... an administrator account, try "sudo rsync -av " Alternately, enable the root account and sign in as root. That should allow you to completely hose your system and brute force your rsync! ;-) I'm not sure if the above mentioned --extended-attributes will help, but I threw it in too, just for go...
How to use OpenFileDialog to select a folder?
...ch is just the FolderBrowserDialog). It is completely unusable: a bunch of root dirs, a missing favorites panel, and the most horrible — you can't even paste a path there! And now as a programmer I see an advice to use it… Please, don't do it.
– Hi-Angel
Au...
How to insert a line break in a SQL Server VARCHAR/NVARCHAR string
...literals. It works this way in all engines I've tried (SQL Server, Oracle, MySQL, PostgreSQL and SQLite).
– Álvaro González
Feb 13 '14 at 15:32
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[精华] VC中BSTR、Char和CString类型的转换 - C/C++ - 清泛网 - 专注C/C++及内核技术
...结构体或类的成员变量。如果必须使用，一定要认真考虑如何分配和释放。
5．下面介绍一种比较复杂的情况，利于对问题的深入理解。例如我们现在用到的ICF底层库就有很多类似下面的函数：
void CTestDlg::GetString(BSTR* state)
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How do I move a redis database from one server to another?
...ew cloud instance and use that instance as my new redis server. If it were MySQL, I would export the DB from the old server and import it into the new server. How should I do this with redis?
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Remove sensitive files and their commits from Git history
...s/folders from your git repository. To use
# it, cd to your repository's root and then run the script with a list of paths
# you want to delete, e.g., git-delete-history path1 path2
if [ $# -eq 0 ]; then
exit 0
fi
# make sure we're at the root of git repo
if [ ! -d .git ]; then
echo "Err...
What are some good Python ORM solutions? [closed]
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It should be noted that Storm only supports MySQL and PostgreSQL at the current moment. Oracle support is in the works though.
– Jason Baker
Aug 6 '09 at 16:25
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Laravel Migration Change to Make a Column Nullable
...n hang. I suppose the first rollback causes this. Causes hanging tests for MySQL as well as for SQLite.
– Thomas Praxl
Jul 19 '18 at 11:49
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PHP 5 disable strict standards error
...every page, that it requires. A way to solve this, is through .htaccess at root folder.
Just to hide the errors. [Put one of the followling lines in the file]
php_flag display_errors off
Or
php_value display_errors 0
Next, to set the error reporting
php_value error_reporting 30719
If you ar...