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Confused by python file mode “w+”
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Let's say you're opening the file with a with statement like you should be. Then you'd do something like this to read from your file:
with open('somefile.txt', 'w+') as f:
# Note that f has now been truncated to 0 bytes, so you'll only
# be able...
How to [recursively] Zip a directory in PHP?
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Here is a simple function that can compress any file or directory recursively, only needs the zip extension to be loaded.
function Zip($source, $destination)
{
if (!extension_loaded('zip') || !file_exists($source)) {
return false;
}
$zip = new ZipArch...
How can I check if a file exists in Perl?
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Test whether something exists at given path using the -e file-test operator.
print "$base_path exists!\n" if -e $base_path;
However, this test is probably broader than you intend. The code above will generate output if a plain file exists at that path, but it will also fire for ...
Multiple file upload in php
I want to upload multiple files and store them in a folder and get the path and store it in the database... Any good example you looked for doing multiple file upload...
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How to search file text for a pattern and replace it with a given value
I'm looking for a script to search a file (or list of files) for a pattern and, if found, replace that pattern with a given value.
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How do I use extern to share variables between source files?
... of relevance when the program you're building
consists of multiple source files linked together, where some of the
variables defined, for example, in source file file1.c need to be
referenced in other source files, such as file2.c.
It is important to understand the difference between defining a
var...
What are file descriptors, explained in simple terms?
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In simple words, when you open a file, the operating system creates an entry to represent that file and store the information about that opened file. So if there are 100 files opened in your OS then there will be 100 entries in OS (somewhere in kernel). Thes...
How do I list all files of a directory?
How can I list all files of a directory in Python and add them to a list ?
21 Answers
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Rename a file using Java
Can we rename a file say test.txt to test1.txt ?
14 Answers
14
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How to append one file to another in Linux from the shell?
I have two files: file1 and file2 . How do I append the contents of file2 to file1 so that contents of file1 persist the process?
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