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Find and Replace Inside a Text File from a Bash Command
...ven input string, say abc , and replace with another string, say XYZ in file /tmp/file.txt ?
14 Answers
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git command to show all (lightweight) tags creation dates
...mit, like Maven, or if you write the new tag version manually to a version file, for instance, it won't matter if it's a lightweight tag or an annotated tag. That's because the commit linked to the lightweight tag will contain the current date and committer information, anyway.
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Appropriate hashbang for Node.js scripts
...ogram with the above shebang, they'll see:
/usr/bin/env: node: No such file or directory
and Googling that will give them the fix in the first result and many times on the first page.
If you truly, desperately want to make sure that the user can run your software on a system where nodejs is a...
Should a .sln be committed to source control?
Is it a best practice to commit a .sln file to source control? When is it appropriate or inappropriate to do so?
15 Answers...
Check synchronously if file/directory exists in Node.js
How can I synchronously check, using node.js , if a file or directory exists?
15 Answers
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How can I see the size of files and directories in linux? [closed]
How can I see the size of files and directories in Linux? If use df -m , then it shows the size of all the directory at the top level, but, for the directories and files inside the directory, how do I check the size?
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MySQL COUNT DISTINCT
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Select
Count(Distinct user_id) As countUsers
, Count(site_id) As countVisits
, site_id As site
From cp_visits
Where ts >= DATE_SUB(NOW(), INTERVAL 1 DAY)
Group By site_id
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How to read a file without newlines?
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You can read the whole file and split lines using str.splitlines:
temp = file.read().splitlines()
Or you can strip the newline by hand:
temp = [line[:-1] for line in file]
Note: this last solution only works if the file ends with a newline, o...
JPG vs. JPEG image formats
...ften use JPEG images, and I have noticed that there are two very similar file extensions: .jpg , which my mobile's camera and the Preview application use, and .jpeg , with which Image Capture saves the images from scanning with my Canon MX455 printer. LaTeX doesn't seem to distinguish, a...
How to convert CSV file to multiline JSON?
... interpose newlines for each document written.
import csv
import json
csvfile = open('file.csv', 'r')
jsonfile = open('file.json', 'w')
fieldnames = ("FirstName","LastName","IDNumber","Message")
reader = csv.DictReader( csvfile, fieldnames)
for row in reader:
json.dump(row, jsonfile)
json...