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Linux error while loading shared libraries: cannot open shared object file: No such file or director
...to each other, so if you have version 1.1 of libfoo.so, you'll have a real file libfoo.so.1.0, and symlinks foo.so and foo.so.1 pointing to the libfoo.so.1.0. And if you install version 1.1 without removing the other one, you'll have a libfoo.so.1.1, and libfoo.so.1 and libfoo.so will now point to ...
What does && mean in void *p = &&abc;
... explain you what an address of a label means.
After the OS loads the .exe file from the disk, a component of the operating system called "the loader" (windows has the "PE Loader", linux has "ELF loader" or maybe even others, if they're compiled in the kernel), it does a "virtualization" of that pro...
ls command: how can I get a recursive full-path listing, one line per file?
...
Use find:
find .
find /home/dreftymac
If you want files only (omit directories, devices, etc):
find . -type f
find /home/dreftymac -type f
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How can I get a side-by-side diff when I do “git diff”?
...checks both the settings of above environment variables and its .gitconfig file.
By default, Git passes the following seven arguments to the diff program:
path old-file old-hex old-mode new-file new-hex new-mode
You typically only need the old-file and new-file parameters. Of course most dif...
pandas GroupBy columns with NaN (missing) values
...lna(-1).groupby('b').sum()
Out[12]:
a
b
-1 2
4 1
6 3
That said, this feels pretty awful hack... perhaps there should be an option to include NaN in groupby (see this github issue - which uses the same placeholder hack).
However, as described in another answer, from pandas 1.1 you have...
Reading from text file until EOF repeats last line [duplicate]
...following C++ code uses a ifstream object to read integers from a text file (which has one number per line) until it hits EOF . Why does it read the integer on the last line twice? How to fix this?
...
Difference between java.io.PrintWriter and java.io.BufferedWriter?
...thods like println(). You can essentially use a PrintWriter to write to a file just like you would use System.out to write to the console.
A BufferedWriter is an efficient way to write to a file (or anything else), as it will buffer the characters in Java memory before (probably, depending on the ...
How do you avoid over-populating the PATH Environment Variable in Windows?
...bdir2;
EDIT: Another option is to create a bin directory that holds .bat files that point to the appropriate .exe files.
EDIT 2: Ben Voigt's comment to another answer mentions that using other environment variables as suggested might not reduce the length of %PATH% because they would be expanded ...
How can I convert my Java program to an .exe file? [closed]
If I have a Java source file (*.java) or a class file (*.class), how can I convert it to a .exe file?
14 Answers
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invalid byte sequence for encoding “UTF8”
...rror seems to be telling you there's some invalid UTF8 data in your source file. That means that the copy utility has detected or guessed that you're feeding it a UTF8 file.
If you're running under some variant of Unix, you can check the encoding (more or less) with the file utility.
$ file yourfi...