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Difference between Hive internal tables and external tables?
... So you are telling if i have data in dis location opt/nancy/foo.txt and i load it in the external table and drop it, the metadata is lost but the data in this location opt/nancy/foo.txt remains?
– DrewRose
Jun 11 '13 at 7:58
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How can I exclude all “permission denied” messages from “find”?
...ncluding a -name filter, as follows:
find . ! -readable -prune -o -name '*.txt'
This, however, does not work as intended, because the trailing -print action is required (an explanation can be found in this answer). Such subtleties can introduce bugs.
The first solution in Jonathan Leffler's answer...
Displaying the build date
... command line:
echo %date% %time% > "$(ProjectDir)\Resources\BuildDate.txt"
Add this file as resource,
now you have 'BuildDate' string in your resources.
To create resources, see How to create and use resources in .NET.
...
Is there a way to tell git to only include certain files instead of ignoring certain files?
...ctory"
directory/another_directory/*
# But don't ignore "file_to_be_staged.txt"
!directory/another_directory/file_to_be_staged.txt
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proguard hell - can't find referenced class
...
The default proguard-android.txt already has this line.
– Cristina De Rito
Jul 7 '17 at 12:52
1
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How can I open several files at once in Vim?
...en all the files that end in .php in a given directory, first create files.txt containing the list of files, prepended with whatever command you want to use to open them.
sp alpha.php
sp bravo.php
sp charlie.php
Then, within vim:
:so files.txt
If the list of files is large, it's relatively tri...
Aliases in Windows command prompt
... off
echo.
notepad++.exe %*
That way, you could do this:
np c:\temp\abc.txt c:\temp\def.txt c:\temp\ghi.txt
and it will open all 3 files.
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Shell脚本编程30分钟入门 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...cd ~mkdir shell_tutcd shell_tutfor ((i=0; i<10; i++)); do touch test_$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，这里...
如何查看Oracle用户的SQL执行历史记录？ - 数据库(内核) - 清泛网 - 专注C/...
...CLE_HOME/admin/test/udump
$ ls -lrt
$ tkprof test_ora_2195620.trc report.txt sys=no explain=no aggregate=yes
$ more report.txt --这个文件包括了启停trace之间所有SQL语句的执行信息，执行计划、统计
【方法四：logminer】
只包含DML与DDL语句，不能查...
Remove file extension from a file name string
If I have a string saying "abc.txt" , is there a quick way to get a substring that is just "abc" ?
12 Answers
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