> Le 12 juin 2025 à 09:42, Paul Smith <paul@xxxxxxxxxxxxxxxxx> a écrit : > > On Thu, 2025-06-12 at 01:50 -0400, Eric Sunshine wrote: >> Had it used the simpler: >> echo "$foo" >> this sort of problem (forgetting the "\n") would never have occurred. > > Just be aware that echo is not well-standardized: many versions of echo > accept extra options or treat certain chars specially. So, printf > (which IS well-standardized) is always safer unless you are 100% sure > that the text on the echo command line is simple: cannot start with a > "-", doesn't contain special chars like backslash, etc. > > For portability I (personally) always prefer printf unless I know > exactly what the text contains (like showing a static string). For exactly this reason, I attempted to write echo(1) to the standards I could find freely available; POSIX mentioned 4, IIRC. https://github.com/benknoble/echocho
