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In Clojure how can I convert a String to a number?
...hich uses clojure.contrib.str-utils2/replace, should help:
(defn str2int [txt]
(Integer/parseInt (replace txt #"[a-zA-Z]" "")))
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How to echo shell commands as they are executed
...ll commands before output of the command.
Output:
+ ls /home/user/
file1.txt file2.txt
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MySQL主从服务器数据一致性的核对与修复 - 数据库(内核) - 清泛网 - 专注C/...
...问题。它们的安装很简单，可以依照自己的操作系统选择下载rpm或者deb软件包来安装，当然也可以使用源代码来安装，不过要注意的是，必须确保系统已经安装了依赖的Perl软件包：
shell> perl -MCPAN -e 'install DBI'
shell> perl -MCPAN -e...
Restricting input to textbox: allowing only numbers and decimal point
...;
</SCRIPT>
</HEAD>
<BODY>
<INPUT id="txtChar" onkeypress="return isNumberKey(event)"
type="text" name="txtChar">
</BODY>
</HTML>
This really works!
...
Create aar file in Android Studio
...ed true
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
Reference .aar file in your project
In your app project you can drop this .aar file in the libs folder and update the build.gradle file to reference this library using the belo...
Why “no projects found to import”?
...le. Here is how you do it:
First create .classpath file:
create a new txt file and name it as .classpath
copy paste following codes and save it:
<?xml version="1.0" encoding="UTF-8"?>
<classpath>
<classpathentry kind="src" path="src"/>
<classpathentry kind="con" path="org....
How do I kill all the processes in Mysql “show processlist”?
...chema.processlist
where user='root' and time > 200 into outfile '/tmp/a.txt';
mysql> source /tmp/a.txt;
Reference
---------edit------------
if you do not want to store in file, store in a variable
Just run in your command prompt
> out1=$(mysql -B test -uroot -proot --disable-column-...
Change multiple files
...lacements. Another example with filepaths sed -i 's|auth-user-pass nordvpn.txt|auth-user-pass /etc/openvpn/nordvpn.txt|g' *.ovpn.
– Léo Léopold Hertz 준영
Mar 5 '17 at 20:59
...
Optimising Android application before release [closed]
... System.out.println(s);
}
//Better coding
final String txt = "Number=";
StringBuilder sb = new StringBuilder();
for(int i=0;i < 999999;i++){
sb.setLength(0);
sb.append(txt);
sb.append(i);
System.out.println(sb);
}
I wrote a more ex...
JQuery Event for user pressing enter in a textbox?
...
HTML Code:-
<input type="text" name="txt1" id="txt1" onkeypress="return AddKeyPress(event);" />
<input type="button" id="btnclick">
Java Script Code
function AddKeyPress(e) {
// look for window.event in case event isn't passed in
...