大约有 44,000 项符合查询结果（耗时：0.0371秒） [XML]
How can Bash execute a command in a different directory context?
... current working directory is very important for running it correctly. The script affects the files that live inside the directory it is run within.
...
How to check if a file is empty in Bash?
....txt
else
rm -f full.txt
touch empty.txt
fi
I like shell scripting a lot, but one disadvantage of it is that the shell cannot help you when you misspell, whereas a compiler like your C++ compiler can help you.
Notice incidentally that I have swapped the roles of empty.txt and full...
How to set up Spark on Windows?
...ou this version: Hadoop 2 (HDP2, CDH5)
Since version 1.0.0 there are .cmd scripts to run spark in windows.
Unpack it using 7zip or similar.
To start you can execute /bin/spark-shell.cmd --master local[2]
To configure your instance, you can follow this link: http://spark.apache.org/docs/latest/
...
Specify width in *characters*
...it really is possible.
The same logic could however be implemented in Javascript. I'm using ubiquitous jQuery here:
<html>
<head>
<style>
body { font-size: 20px; font-family: Monospace; }
</style>
<script
type="text/javascript"
src ="htt...
execJs: 'Could not find a JavaScript runtime' but execjs AND therubyracer are in Gemfile
...p392, rails 3.2.3, gem 1.8.25. Was receiving the same error while running "script/rails console" and "script/rails server". sudo apt-get install nodejs solved my issue.
– ajin6747
Mar 14 '13 at 11:52
...
How can I convert a string to upper- or lower-case with XSLT?
...="msxsl">
<xsl:output method="xml" indent="yes"/>
<msxsl:script implements-prefix="utils" language="C#">
<![CDATA[
public string ToLower(string stringValue)
{
string result = String.Empty;
if(!String.IsNullOrEmpty(stringValue))
{
...
How to search file text for a pattern and replace it with a given value
I'm looking for a script to search a file (or list of files) for a pattern and, if found, replace that pattern with a given value.
...
Ant: How to execute a command for each file in directory?
...
Here is way to do this using javascript and the ant scriptdef task, you don't need ant-contrib for this code to work since scriptdef is a core ant task.
<scriptdef name="bzip2-files" language="javascript">
<element name="fileset" type="fileset"/>...
Really Cheap Command-Line Option Parsing in Ruby
...but it's still falsey, so it works just fine for throwaway tools and quick scripts.
One caveat pointed out by FelipeC in the comments in "How to do really cheap command-line option parsing in Ruby", is that your shell might not support the 3-token shebang; you may need to replace /usr/bin/env ruby ...
error_log per Virtual Host?
...in .htaccess or you can have users use ini_set() in the beginning of their scripts if they want to have logging.
Another option would be to enable scripts to default to the php.ini in the folder with the script, then go to the user/host's root folder, then to the server's root, or something similar...