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Stretch and scale CSS background
...image, rather than being evenly cropped on both sides (and centered). I've tested it in Firefox, Webkit, and Internet Explorer 8.
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How do I create a crontab through a script
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Even more simple answer to you question would be:
echo "0 1 * * * /root/test.sh" | tee -a /var/spool/cron/root
You can setup cronjobs on remote servers as below:
#!/bin/bash
servers="srv1 srv2 srv3 srv4 srv5"
for i in $servers
do
echo "0 1 * * * /root/test.sh" | ssh $i " tee -a /var/spool/...
How to remove unused C/C++ symbols with GCC and ld?
...unreferenced sections):
-Wl,--gc-sections
So if you had one file called test.cpp that had two functions declared in it, but one of them was unused, you could omit the unused one with the following command to gcc(g++):
gcc -Os -fdata-sections -ffunction-sections test.cpp -o test -Wl,--gc-sections...
How do I parse command line arguments in Bash?
...ready3 that no GNU system is missing this (e.g. any Linux has it).
You can test for its existence with: getopt --test → return value 4.
Other getopt or shell-builtin getopts are of limited use.
The following calls
myscript -vfd ./foo/bar/someFile -o /fizz/someOtherFile
myscript -v -f -d -o/fizz...
创建增量同步Oracle物化视图问题 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...库C上新建这个物化视图却失败，说：“ORA-12014: 表 'T_MV_TEST' 不包含主键约束条件”。如果将此表的主键增加字段并ENABLE后操作，又说：“ORA-23412: 主表的主键列已更改”。
但有一个奇怪的现象：在数据库B上我们也建立过物化视...
Is there a JavaScript function that can pad a string to get to a determined length?
...(' '), // make a string of 255 spaces
pad(padding,123,true);
Performance Test
See the jsPerf test here.
And this is faster than ES6 string.repeat by 2x as well, as shown by the revised JsPerf here
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Simulate limited bandwidth from within Chrome?
... The throttle feature isn't an upload limiter. It's for download testing and seeing how your page loads on a different connection.
– Nelson
Sep 24 '16 at 11:18
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How does Facebook disable the browser's integrated Developer Tools?
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I'm a security engineer at Facebook and this is my fault. We're testing this for some users to see if it can slow down some attacks where users are tricked into pasting (malicious) JavaScript code into the browser console.
Just to be clear: trying to block hackers client-side is a bad id...
What is the difference between varchar and varchar2 in Oracle?
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Taken from the latest stable Oracle production version 12.2:
Data Types
The major difference is that VARCHAR2 is an internal data type and VARCHAR is an external data type. So we need to understand the difference between an internal and ext...
Idiomatic way to convert an InputStream to a String in Scala
...lease point out the "performance bug" that you mentioned in your answer. I tested both versions with some basic testcases and didn't hit any issue.
– Sahil Sareen
Sep 15 '15 at 16:11
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