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1. ikeji (ikeji@ostatus.ikeji.ma)'s status on Tuesday, 19-Sep-2023 23:30:16 JST ikeji
   ちゃうねん。flockコマンドはコマンドじゃなくてfdを引数に取れるんや。
   • ikeji (ikeji@ostatus.ikeji.ma)'s status on Tuesday, 19-Sep-2023 23:49:34 JST ikeji

     in reply to
     https://man7.org/linux/man-pages/man1/flock.1.html
     ```
     shell> exec 4<>/var/lock/mylockfile; shell> flock -n 4
     This form is convenient for locking a file without spawning a
     subprocess. The shell opens the lock file for reading and
     writing as file descriptor 4, then flock is used to lock the
     descriptor.
     ```
     spawningしとるやろが