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What is the best way to force yourself to master vi? [closed]
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Extracting text OpenCV
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+200
You can detect text by finding close edge elements (inspired from a LPD):
#include "opencv2/opencv.hpp"
std::vector<cv::Rect>...
SQLiteDatabase.query method
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tableColumns
null for all columns as in SELECT * FROM ...
new String[] { "column1", "column2...
Simple logical operators in Bash
...oup commands, but they only influence parsing, not grouping. The program x=2; { x=4; }; echo $x prints 4, whereas x=2; (x=4); echo $x prints 2. (Also braces require spaces around them and a semicolon before closing, whereas parentheses don't. That's just a syntax quirk.)
With a leading dollar sign...
Simple Vim commands you wish you'd known earlier [closed]
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How can I check file size in Python?
...gt; Path('somefile.txt').stat()
os.stat_result(st_mode=33188, st_ino=6419862, st_dev=16777220, st_nlink=1, st_uid=501, st_gid=20, st_size=1564, st_atime=1584299303, st_mtime=1584299400, st_ctime=1584299400)
>>> Path('somefile.txt').stat().st_size
1564
or using os.stat:
>>> impor...
Omitting the first line from any Linux command output
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or awk 'NR>1'
– mitchus
Oct 1 '14 at 9:54
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