Re: sort parameters question: -V and -f
Eric Blake wrote, On 04/06/2011 06:36 PM: On 04/06/2011 04:04 PM, Pádraig Brady wrote: On 06/04/11 22:26, Assaf Gordon wrote: I'm wondering if this is a bug (where -f is ignored when using version sort): The same happens for any ordering option. If any is specified for the key, then all global options are ignored. This is specified by POSIX and here it's demonstrated on solaris: Not only that, but --debug would have told you the same: --debug did tell me that, but I thought it's a bug, not a feature. I assumed -f is accumulative, not overridden when specifying per-key sort order - I should have read the docs more carefully. Thanks for the quick and detailed response. -gordon
sort parameters question: -V and -f
Hello, I'm wondering if this is a bug (where -f is ignored when using version sort): = $ sort --debug -f -k2,2V sort: using simple byte comparison sort: leading blanks are significant in key 1; consider also specifying `b' sort: option `-f' is ignored == My assumption is that using -f as stand alone parameter should have the same effect as using it in a specific key (for that key). e.g. the following two commands are equivalent: sort -f -k1,1 sort -k1f,1 But the following two commands are not equivalent (because the standalone -f is ignored): sort -f -k1V,1 sort -k1Vf,1 Example: = ## This works $ printf a\nB\nc\n | sort -k1f,1 a B c $ printf a\nB\nc\n | sort -f -k1,1 a B c ## This doesn't work $ printf a13\nA5\na1\n | sort -k1Vf,1 a1 A5 a13 $ printf a13\nA5\na1\n | sort -f -k1V,1 A5 a1 a13 === I'm using coreutils 8.10. -gordon
Re: sort parameters question: -V and -f
On 06/04/11 22:26, Assaf Gordon wrote: Hello, I'm wondering if this is a bug (where -f is ignored when using version sort): = $ sort --debug -f -k2,2V sort: using simple byte comparison sort: leading blanks are significant in key 1; consider also specifying `b' sort: option `-f' is ignored The same happens for any ordering option. If any is specified for the key, then all global options are ignored. This is specified by POSIX and here it's demonstrated on solaris: solaris:~ printf a13\nA5\na1\n | sort -f -k1r,1 a13 a1 A5 solaris:~ printf a13\nA5\na1\n | sort -k1r,1 a13 a1 A5 cheers, Pádraig.
