On Friday, 27 May 2022 at 01:26:55 UTC+2 hohoa...@gmail.com wrote: > Hi there, > > > Are you asking whether a shell script can handle complex arithmetic? > What does that have to do with Sage? > Maybe it's just wishful thinking. One day, SageMath may have it's own > shell (smiley) > > A shell is a programming language, and sage has one: python. In fact, ipython (the interface used by sage) has some features to make it slightly more palatable as a CLI for operating system use:
https://ipython.org/ipython-doc/3/interactive/shell.html However, on the side of "bash": semantically, commands like [...] are just process invocations. It's only for efficiency that they're implemented within the bash process itself. You can already do: $ sage -c "sys.exit( not(1==0))" || echo "false" false $ sage -c "sys.exit( not(1==1))" && echo "true" true so you can get sage results for logical flow control in bash already (note that in bash 0 means "true" and 1 means "false"; hence the confusing "not". You can use this in bash "if" statements as well; look up the "test" spelling of "[ .. ]" (and there actually is a /usr/bin/test executable) -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/sage-devel/99d4a6da-0725-4d72-aa72-eabf30b44d37n%40googlegroups.com.
