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How to create a GUID/UUID in Python
... for the device's permanent UUID. Throws if command missing/fails.
txt = subprocess.check_output("wmic csproduct get uuid").decode()
# Attempt to extract the UUID from the command's result.
match = re.search(r"\bUUID\b[\s\r\n]+([^\s\r\n]+)", txt)
if match is not None...
What is the difference between NTFS Junction Points and Symbolic Links?
..."C:\symlink" both target "E:\spam", and the relative symlink "E:\spam\eggs.txt" targets "..\eggs.txt". Then "C:\junction\eggs.txt" resolves to "C:\eggs.txt", and "C:\symlink\eggs.txt" resolves to "E:\eggs.txt".
– Eryk Sun
Dec 25 '19 at 23:29
...
Read a variable in bash with a default value
...
Code:
IN_PATH_DEFAULT="/tmp/input.txt"
read -p "Please enter IN_PATH [$IN_PATH_DEFAULT]: " IN_PATH
IN_PATH="${IN_PATH:-$IN_PATH_DEFAULT}"
OUT_PATH_DEFAULT="/tmp/output.txt"
read -p "Please enter OUT_PATH [$OUT_PATH_DEFAULT]: " OUT_PATH
OUT_PATH="${OUT_PATH:-...
node.js: read a text file into an array. (Each line an item in the array.)
...
console.log('Line: ' + data);
}
var input = fs.createReadStream('lines.txt');
readLines(input, func);
EDIT: (in response to comment by phopkins) I think (at least in newer versions) substring does not copy data but creates a special SlicedString object (from a quick glance at the v8 source cod...
Modifying the “Path to executable” of a windows service
...ot all 'QueryServiceConfig' :)
>SC QUERY > "%computername%-services.txt" [enter]
>FIND "SERVICE_NAME: " "%computername%-services.txt" /i > "%computername%-services-name.txt" [enter]
>NOTEPAD2 "%computername%-services-name.txt" [enter]
Do 'small' NOTEPAD2 editing..
Then, contin...
Git diff output to file preserve coloring
...
Try:
git diff --color > foo.txt
Then later issue:
cat foo.txt
Or:
less -R foo.txt
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How to create directories recursively in ruby?
I want to store a file as /a/b/c/d.txt, but I do not know if any of these directories exist and need to recursively create them if necessary.
How can one do this in ruby?
...
How to search and replace text in a file?
...t to the same file in a separate step.
# Read in the file
with open('file.txt', 'r') as file :
filedata = file.read()
# Replace the target string
filedata = filedata.replace('ram', 'abcd')
# Write the file out again
with open('file.txt', 'w') as file:
file.write(filedata)
Unless you've got ...
The way to check a HDFS directory's size?
...ork (in Hadoop 2.7.1). For example:
Directory structure:
some_dir
├abc.txt
├count1.txt
├count2.txt
└def.txt
Assume each file is 1 KB in size. You can summarize the entire directory with:
hdfs dfs -du -s some_dir
4096 some_dir
However, if I want the sum of all files containin...
C# Sanitize File Name
... void CoerceValidFileName_SimpleValid()
{
var filename = @"thisIsValid.txt";
var result = PathHelper.CoerceValidFileName(filename);
Assert.AreEqual(filename, result);
}
[Test]
public void CoerceValidFileName_SimpleInvalid()
{
var filename = @"thisIsNotValid\3\\_3.txt";
var resul...