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How can I use a file in a command and redirect output to the same file without truncating it?
...ash processes the redirections first, then executes the command. So by the time grep looks at file_name, it is already empty. You can use a temporary file though.
#!/bin/sh
tmpfile=$(mktemp)
grep -v 'seg[0-9]\{1,\}\.[0-9]\{1\}' file_name > ${tmpfile}
cat ${tmpfile} > file_name
rm -f ${tmpfile...
How do I install a NuGet package .nupkg file locally?
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Actually, I have done step 1 a few times. But my package is not showing up in step 2, when I open up to view Installed packages, Updates or Recent packages.
– Tom
Apr 20 '12 at 4:20
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Just what is an IntPtr exactly?
...oking at other people's code, I have come across this IntPtr type; every time it has needed to be used I have simply put null or IntPtr.Zero and found most functions to work. What exactly is it and when/why is it used?
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Comparing two byte arrays in .NET
...If you can't use .NET 3.5 for some reason, your method is OK.
Compiler\run-time environment will optimize your loop so you don't need to worry about performance.
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SharedPreferences.onSharedPreferenceChangeListener not being called consistently
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this accepted answer is ok, as for me it is creating new instance each time the activity resumes
so how about keeping the reference to the listener within the activity
OnSharedPreferenceChangeListener myPrefListner = new OnSharedPreferenceChangeListener(){
public void onSharedPreferenceC...
How do I install Maven with Yum?
...her yum or maven. I've inherited this code and I don't want to spend more time than I have to in this environment.
10 Answ...
What is the native keyword in Java for?
... mess on the stack, with no error reported (at any of compile, link or run times). Thus I find it important to mention to be careful on this step.
– SR_
Mar 19 '18 at 13:04
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vim, switching between files rapidly using vanilla Vim (no plugins)
...r Vim and cloned my own beloved config but I decided to travel light, this time, in order to "sharpen the saw". I quickly built a minimalist .vimrc and revisited a couple of half forgotten native features. After that gig, I decided CtrlP wasn't that necessary and got rid of it: native features and c...
Where is android studio building my .apk file?
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Can't believe I wasted so much time just because I forgot that just because Android Studio doesn't always show you all the directories...
– Jon McClung
Dec 19 '16 at 3:42
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What does the plus sign do in '+new Date'
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But like why wouldn't you use the defined getTime method on the date object?!
– tkone
Aug 23 '12 at 21:36
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