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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:-...
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
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node.js: read a text file into an array. (Each line an item in the array.)
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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?
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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...
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 ...
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...
Copy file remotely with PowerShell
...t's much easier this way.
Copy-Item -Path \\serverb\c$\programs\temp\test.txt -Destination \\servera\c$\programs\temp\test.txt;
By using UNC paths instead of local filesystem paths, you help to
ensure that your script is executable from any client system with
access to those UNC paths. If...