AWK tutorial: awk workflow
AWK follows a simple workflow − Read, Execute, and Repeat. BODY block This block is the core of the awk command. It consists of three...
ffmpeg video to image
- specify video time interception image - Output one image every second - Output one image every minute - use the select filter for a set of custom...
a mini parrotfish play
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awk if else and nested if else statements with examples
Awk if else condition judgment statement is to provide command branch control, awk if else syntax: if(condition) { action 1 } else { action...
fmpeg -filter_complex move image
- Image move from bottom to top in videos
- Video with image in the middle
- Start zooming in the middle of the picture - Using ffmpeg...
How does my website get flow ???
Content ？ Valuable original content？ SEO？ Wordpress SEO optimization ？ ...... ...
Why 0.1+0.2=0.30000000000000004(floating point number addition)
From the how-to-store-numbers-in-javascript, we know that Now we get 0.2 by the same way, Now we operate by the following steps:...
How to store numbers in Javascript
We know that all numbers in Javascript are stored in 64-bit format IEEE-754, also known as “double precision”,whatever the types int or float. When you...
Facing the Sea With Spring Blossoms
From tomorrow on,I will be a happy man.
Grooming,chopping and traveling all over the world.
From tomorrow on,I will care foodstuff and vegetable.
Living in a house towards...
awk system batch operation
1. use awk command batch creation of files
awk 'BEGIN {do {++i; system("touch file_num_" i "_test") } while (i<9) }' .........
WordPress change permalink，page return 404
wordpress change permalink page return 404. 1. edit nginx conf
2.add in server 3.restart nginx ...
Hello, Everybody. I’m Here.
This is my first article. This site records and shares my development routines. Welcome!
:-D:-D:-D...