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How do I remove the passphrase for the SSH key without having to create a new key?
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2034
Short answer:
$ ssh-keygen -p
This will then prompt you to enter the keyfile location, the ...
Run cron job only if it isn't already running
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#!/bin/sh
if ps -ef | grep -v grep | grep doctype.php ; then
exit 0
else
/home/user/bin/doctype.php >> /home/user/bin/spooler.log &
#mailing program
/home/user/bin/simplemail.php "Print spooler was not running... Restarted."
exit 0
fi
It runs ev...
ASP.Net MVC Html.HiddenFor with wrong value
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Darin DimitrovDarin Dimitrov
930k250250 gold badges31503150 silver badges28432843 bronze badges
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How to determine whether a Pandas Column contains a particular value
...s in the index:
In [11]: s = pd.Series(list('abc'))
In [12]: s
Out[12]:
0 a
1 b
2 c
dtype: object
In [13]: 1 in s
Out[13]: True
In [14]: 'a' in s
Out[14]: False
One option is to see if it's in unique values:
In [21]: s.unique()
Out[21]: array(['a', 'b', 'c'], dtype=object)
In [22]:...
How to center the content inside a linear layout?
..._parent"
android:layout_height="match_parent"
android:background="#000"
android:baselineAligned="false"
android:gravity="center"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/ac...
What's the difference between @Secured and @PreAuthorize in spring security 3?
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170
The real difference is that @PreAuthorize can work with Spring Expression Language (SpEL). You c...
TaifunPlayer 扩展（Audio Player）：音频播放器扩展，支持流媒体播放控制 ...
...)
设置播放循环模式。
循环模式：数字类型，0=不循环，1=循环全部，2=循环当前
返回类型：无返回值
GetDuration 获取时长()
获取媒体文件的总时长（毫秒）。
返回类型：数字类型，媒体总时长（毫...
How to create a protocol with methods that are optional?
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Nate Cook
85k3232 gold badges200200 silver badges170170 bronze badges
answered Nov 26 '08 at 23:21
Matt GallagherMatt Gallagher
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Filtering a list of strings based on contents
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edited May 17 at 20:09
wjandrea
12.4k55 gold badges2424 silver badges4747 bronze badges
answered...
How to disable/enable the sleep mode programmatically in iOS?
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380
You can disable the idle timer as follows;
In Objective-C:
[UIApplication sharedApplication].i...