How to read a file in Groovy into a string?
String fileContents = new File(‘/path/to/file’).text If you need to specify the character encoding, use the following instead: String fileContents = new File(‘/path/to/file’).getText(‘UTF-8’)
file
Search and replace a line in a file in Python
The shortest way would probably be to use the fileinput module. For example, the following adds line numbers to a file, in-place: import fileinput for line in fileinput.input(“test.txt”, inplace=True): print(‘{} {}’.format(fileinput.filelineno(), line), end=”) # for Python 3 # print “%d: %s” % (fileinput.filelineno(), line), # for Python 2 What happens here is: The original file … Read more
Save and load MemoryStream to/from a file
You may use MemoryStream.WriteTo or Stream.CopyTo (supported in framework version 4.5.2, 4.5.1, 4.5, 4) methods to write content of memory stream to another stream. memoryStream.WriteTo(fileStream); Update: fileStream.CopyTo(memoryStream); memoryStream.CopyTo(fileStream);
How do I load a file from resource folder?
Try the next: ClassLoader classloader = Thread.currentThread().getContextClassLoader(); InputStream is = classloader.getResourceAsStream(“test.csv”); If the above doesn’t work, various projects have been added the following class: ClassLoaderUtil1 (code here).2 Here are some examples of how that class is used: src\main\java\com\company\test\YourCallingClass.java src\main\java\com\opensymphony\xwork2\util\ClassLoaderUtil.java src\main\resources\test.csv // java.net.URL URL url = ClassLoaderUtil.getResource(“test.csv”, YourCallingClass.class); Path path = Paths.get(url.toURI()); List<String> lines = Files.readAllLines(path, … Read more
How to restore the permissions of files and directories within git if they have been modified?
Git keeps track of filepermission and exposes permission changes when creating patches using git diff -p. So all we need is: create a reverse patch include only the permission changes apply the patch to our working copy As a one-liner: git diff -p -R –no-ext-diff –no-color \ | grep -E “^(diff|(old|new) mode)” –color=never \ | … Read more
Nested using statements in C#
The preferred way to do this is to only put an opening brace { after the last using statement, like this: using (StreamReader outFile = new StreamReader(outputFile.OpenRead())) using (StreamReader expFile = new StreamReader(expectedFile.OpenRead())) { ///… }
Deleting all files from a folder using PHP?
$files = glob(‘path/to/temp/*’); // get all file names foreach($files as $file){ // iterate files if(is_file($file)) { unlink($file); // delete file } } If you want to remove ‘hidden’ files like .htaccess, you have to use $files = glob(‘path/to/temp/{,.}*’, GLOB_BRACE);
How to check whether a file is empty or not
>>> import os >>> os.stat(“file”).st_size == 0 True
Best way to require all files from a directory in ruby?
How about: Dir[“/path/to/directory/*.rb”].each {|file| require file }
How can I find encoding of a file via a script on Linux?
It sounds like you’re looking for enca. It can guess and even convert between encodings. Just look at the man page. Or, failing that, use file -i (Linux) or file -I (OS X). That will output MIME-type information for the file, which will also include the character-set encoding. I found a man-page for it, too 🙂