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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...
How to change the type of a field?
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This is great - do you know how you'd convert a string (think currency like '1.23') to the integer 123? I assume you'd have to parse it as a float or decimal, multiply it by 100, then save it as an integer, but I can't find the right docs to do thi...
Simplest code for array intersection in javascript
...riginal question saying that the contents are expected to contain arrays. Now, you'd be right to say that unexpected input should be handled, but if the spec already happened to dictate that input must be arrays of numbers (as I assumed) then the code would be fine.
– atk
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How to call getClass() from a static method in Java?
... reformat and shorten FQ names.
Change the context to Java: declaration.
Now if you type log<tab> it'll automatically expand to
private static final Logger logger = LoggerFactory.getLogger(ClassName.class);
And automatically reformat and optimize the imports for you.
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How to calculate a Mod b in Casio fx-991ES calculator
Does anyone know how to calculate a Mod b in Casio fx-991ES Calculator. Thanks
10 Answers
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How do I mount a remote Linux folder in Windows through SSH? [closed]
...t can map a WebDAV, FTP, SFTP, etc. share to a windows drive letter. It is now abandonware, so it's no longer maintained (and not available on the Novell website), but it's free to use. I found quite a few available to download by searching for "netdrive.exe" I actually downloaded a few and compared...
Java synchronized static methods: lock on object or class
...intln(Thread.currentThread().getName() + " " + i);
}
}
}
So, now we can have following scenarios :
When threads using same Object tries to access objLock OR staticLock method same time (i.e. both threads are trying to access same method)
Thread-0 0
Thread-0 1
Thread-0 2
Thread-0 3
T...
Reverting single file in SVN to a particular revision
... forget the dash (-) as prefix for the revision.
svn revert File1 File2
Now commit the changes back.
Node.js: what is ENOSPC error and how to solve?
...ike ENOSPC - no space on drive? Sure, the error code makes sense once you know what it means (Error NO SPaCe), but why not just give users that info up front?
– Shadoninja
Jun 21 '19 at 15:16
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Overriding class constants vs properties
...>test;
}
Note the static keyword. This is uses "late static binding". Now you're parent class will call the const of your child class.
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