5 ms·

Simple to verify with strace -f bash -c "> file": openat(AT_FDCWD, "file", O_WRONLY|O_CREAT|O_TRUNC, 0666) = 3 man 2 openat: O_TRUNC If the f

by matja 3y ago

Simple to verify with strace -f bash -c "> file": openat(AT_FDCWD, "file", O_WRONLY|O_CREAT|O_TRUNC, 0666) = 3 man 2 openat: O_TRUNC If the file already exists and is a regular file and the access mode allows writing (i.e., is O_RDWR or O_WRONLY) it will be truncated to length 0. ...

pdimitar 3y ago
Sure, but I just get an interactive prompt when I type `> file` and I honestly don't care to troubleshoot. ¯\_(ツ)_/¯
- matja 3y ago
  Probably you are using zsh and need: MULTIOS=1 > file - zsh isn't POSIX compatible by default
  - pdimitar 3y ago
    I see. But in this case it's best to just memorize `truncate -s0` which is shell-neutral.
- matja 3y ago
  Ok, we'll leave that a mystery then!