I have a variable that takes its content from a file (I can't change the content of the file):
echo $variable
It's my variable
I want to print that string on a video with ffmpeg:
ffmpeg -nostdin -i input.mp4 -vf drawtext="text='$variable': fontcolor=white:box=1:boxcolor=black@0.8: x=h/70: y=h/5*4.2" -codec:a copy output.mp4
when I do that, the quote inside $variable is not printed. I have read here that I need to escape the quote multiple times, some say 5 times, some say more.
So I have tried to use
variable=${variable//\'/'\\\\\'\'}
to add between 1 and 10 backslashes, but it never worked: either nothing is printed, or \ are printed:
It\s my variable
Can someone tell me what is the correct syntax, or the correct number of backslashes I should add?
