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How can I remove the first line of a text file using bash/sed script?
...il
Shell redirects stdout of the tail process to $FILE
tail reads from the now empty $FILE
If you want to remove the first line inside the file, you should use:
tail -n +2 "$FILE" > "$FILE.tmp" && mv "$FILE.tmp" "$FILE"
The && will make sure that the file doesn't get overwrit...
.classpath and .project - check into version control or not?
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Wow, I didn't know they added this... Would have saved us some grief
– Uri
May 12 '10 at 14:20
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How to find if directory exists in Python
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@CamilStaps This question was viewed 354000 times (by now). Answers here are not only for OP, they are for anyone who could come here for whatever reason. aganders3's answer is pertinent even if it does not directly resolve OP's problem.
– Gabriel
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Check orientation on Android phone
...g ALWAYS. If you think about a moment, this is exactly what you want - to know if width is smaller than height (portrait), the opposite (landscape) or if they are the same (square).
Then it comes down to this simple code:
public int getScreenOrientation()
{
Display getOrient = getWindowManag...
Further understanding setRetainInstance(true)
...ent and this seems like a very important function. Specifically I want to know how much of this sequence (that I made up) is true:
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Java Naming Convention with Acronyms [closed]
... like to note that the .NET Framework Design Guidelines do specify this.
Now before slamming me for being off topic, please remember that the class naming guidelines for Java and the .NET Framework are quite similar, which makes the .NET guidelines useful as a persuasive reference.
General Rules
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MySQL: determine which database is selected?
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@cwallenpoole how about now?
– Nordle
Oct 23 '18 at 13:00
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show 1 more comment
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Python - Get path of root project structure
...path(__file__)) # This is your Project Root
Thus, with the Project Root known, you can create a variable that points to the location of the configuration (this can be defined anywhere, but a logical place would be to put it in a location where constants are defined - e.g. definitions.py):
CONFIG_...
Install an apk file from command prompt?
...cmd
Navigate to platform-tools\ in the android-sdk windows folder
Type adb
now follow the steps writte by Mohit Kanada (ensure that you mention the entire path of the .apk file for eg. d:\android-apps\test.apk)
share
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Why can't C# interfaces contain fields?
...embers of an interface are--by definition--public, our backing variable is now exposed to anyone using the interface
Which myBackingVariable will MyClass use?
The most common approach taken is to declare the interface and a barebones abstract class that implements it. This allows you the flexibili...