On Tue, 20 Aug 2013 22:13:11 +0200 Dan Shelton wrote:
> Does the Korn shell pattern syntax have an AND operator equivalent to
> & in grep -X or ~(X)?
here is an example using var expansion editing
ksh -c 'v=abcd; print ${v/@(+([abc])&*([bcd]))/X}'
you can see a more examples in the ast regex regression tests
cd $PACKAGEROOT/src/cmd/re
grep $'^K\t.*&' *.dat
the *.dat file format man page is embedded in testregex.c in that same dir
RE conjunction is typically combined with negation
I use it this way a lot
print rm @(*.c&!(precious.c))
you can test ksh93 patterns with grep but be sure to use the -x option
because shell glob pattern matching is anchored
print $'foo.c\nprecious.c\nnotprecious.c' |
grep -Kx '@(*.c&!(precious.c))'
should produce
foo.c
notprecious.c
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