On Fri, Jul 8, 2022, 12:44 Koichi Murase <myoga.mur...@gmail.com> wrote:
> 2022年7月8日(金) 19:29 Alex fxmbsw7 Ratchev <fxmb...@gmail.com>: > > > > ls -l /production/path | mail -s "all-good" not...@company.com > || > > > > true # Not critical > > > > > > > small side note there, a || true is big slow imho > > What does it mean? If you are talking about the execution time, "|| > true" is much faster than spawning external processes like "ls" and > "mail". I've measured it in my system, but the overhead by "|| true" > is about 270ns (assuming the error basically does not happen if the > environment is properly set up) while the overhead by a pipe "ls -l | > cat -v" (where I replaced "mail ..." with "cat -v") is about > 6630200ns. The main command is 2.5x10^6 times slower. In real cases, I > would expect that "mail" would take much more time than "mail". Even > if the main command does not "fork" or "exec" new processes, I believe > 270ns is always negligible. > > -- > Koichi > hi mate i always mean high speed serial as mass as possible aka, i would never use this code ever, excepts its not my rules also not meaning the 'never hit' at all case dont mind me mate, im outdated i dont computer atm since long greets >
