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Shell脚本编程30分钟入门 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...! bin shcd ~mkdir shell_tutcd shell_tutfor ((i=0; i<10; i++)); do touch test_$i.txt...
什么是Shell脚本
示例
看个例子吧:
#!/bin/sh
cd ~
mkdir shell_tut
cd shell_tut
for ((i=0; i<10; i++)); do
touch test_$i.txt
done
示例解释
第1行:指定脚本解释器...
How to use phpexcel to read data and insert into database?
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i tested this today with v 1.7.9, 2013-06-02 and it did not work. i had to replace $highestColumn = PHPExcel_Cell::columnIndexFromString($sheet->getHighestColumn()); with simple $sheet->getHighestColumn(). you may have a ...
Swift: #warning equivalent
...e to use #warning again like so:
#warning("TODO: Clean up this code after testing")
This will show up as a warning in Xcode just as expected!
This works even in combination with #if checks, for example the following will only show a warning if your target platform is iOS:
#if os(iOS)
#warni...
Quick easy way to migrate SQLite3 to MySQL? [closed]
...can then (in theory) import this into the mysql database, in this case the test database on the database server 127.0.0.1, using user root.
mysql -p -u root -h 127.0.0.1 test < dump.sql
I say in theory as there are a few differences between grammars.
In sqlite transactions begin
BEGIN TRANSA...
How to trim a string in SQL Server before 2017?
...this example, Space, tab, LF and CR characters are being trimmed:
Declare @Test nvarchar(50) = Concat (' ', char(9), char(13), char(10), ' ', 'TEST', ' ', char(9), char(10), char(13),' ', 'Test', ' ', char(9), ' ', char(9), char(13), ' ')
DECLARE @TrimPattern nvarchar(max) = '%[^ ' + char(9) + char(...
How do I check if a string is unicode or ascii?
...nicode string may consist of purely characters in the ASCII range, and a bytestring may contain ASCII, encoded Unicode, or even non-textual data.
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Finding a branch point with Git?
...d the following tree (letters assigned in chronological order), so I could test things out:
A - B - D - F - G <- "master" branch (at G)
\ \ /
C - E --' <- "topic" branch (still at E)
This looks a little different than yours, because I wanted to make sure that I got (r...
How to do a case sensitive search in WHERE clause (I'm using SQL Server)?
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It doesn't work with czech alphabet. Tested word: 'ukázka'. It is in the table as a singe word in a column, but your search didn't find it.
– Jan Macháček
May 22 '18 at 13:32
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Bash empty array expansion with `set -u`
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I don't see you testing "${arr[@]}". Am I missing something? From what I can see it works at least in 5.x.
– x-yuri
May 9 at 17:49
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How do I check OS with a preprocessor directive?
...int argc, char *argv[]) {
puts(get_platform_name());
return 0;
}
Tested with GCC and clang on:
Debian 8
Windows (MinGW)
Windows (Cygwin)
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