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Re: subsitutions and beginning of lines.
On Oct 12, 10:07am, Ray Andrews wrote:
}
} ... Each search parameter is colorized incrementally. (I add the minus
} sign automatically) It now strips off the leading stuff as we've
} discussed. Code as I have it now is:
}
} OLDIFS=$IFS
} IFS=$'\n' var=($(eval history $nnumber $sstring))
}
} echo "${(F)var[@]//#???????/}"
} IFS=$OLDIFS
}
} So, the 'eval'ed expression ends up like:
}
} 'history -100 | grep --color=always to | grep --color=always 'a date' | ... '
If you're using "grep" to do the colorizing, there's no point in using
the $history variable to get the history entries, because you need them
to end up on stdout for passing through grep anyway.
(Generic advice to anyone reading this: Asking about one small piece of
a larger problem is quite likely to get you an inappropriate solution.
Context is important.)
} the outputno longer lines up because double spaces become single
} spaces whereas double spaces are needed for the brutal ' //#???????/'
} substitution to work properly.
Why not simply use "history -n" so the numbers are omitted in the first
place? Then you don't need to assign to var=(...) and apply //#.../.
That whole chunk of code just reduces to
eval history -n $nnumber $sstring
and you're done.
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