if statement - Can't put a certain expression in IF clause in batch file -
the following works fine: @echo off youtube-dl --output d:\path\%%(title)s.%%(ext)s -f bestaudio https://www.youtube.com/watch?v=j9bjjejk2dq i can add if clause (and expected 'hi'): @echo off if 1==1 ( echo hi ) youtube-dl --output d:\path\%%(title)s.%%(ext)s -f bestaudio https://www.youtube.com/watch?v=j9bjjejk2dq but when put youtube-dl in if clause, doesn't work. s.%(ext)s unexpected @ time. , without hi . @echo off if 1==1 ( echo hi youtube-dl --output d:\path\%%(title)s.%%(ext)s -f bestaudio https://www.youtube.com/watch?v=j9bjjejk2dq ) same thing if put output path in variable: @echo off set output=d:\path\%%(title)s.%%(ext)s if 1==1 ( echo hi youtube-dl --output %output% -f bestaudio https://www.youtube.com/watch?v=j9bjjejk2dq ) the variable not problem, following works fine: @echo off set output=d:\path\%%(title)s.%%(ext)s if 1==1 ( echo hi ) youtube-dl --output %output% -f bestaudio https://www.youtube.com/watch?v=j9...