On 06-03-17 14:18, Greg Wooledge wrote: > You're misunderstanding. In a math context, which you are creating here > by using -eq, the word 'x' is interpreted as a variable name, which may > contain another variable name, and so on, until finally an integer is > discovered.
Thanks. Now that I know it, I can indeed find it in the docs. I guess this means that actually test and [ are 'broken': $ test "x" -eq "x" && echo "yes" || echo "no" test: invalid integer 'x' no $ [ "x" -eq "x" ] && echo "yes" || echo "no" [: invalid integer 'x' no I hope this won't be fixed, as I rely quite heavily on this behaviour, lacking some other short 'is integer' test. Cheers, Rob -- -- Rob la Lau -- -- Sysadmin en webdeveloper in ruste -- -- web : https://ohreally.nl/ -- eml : r...@ohreally.nl --