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Full Discussion: Cherry picking with sed?
Top Forums UNIX for Beginners Questions & Answers Cherry picking with sed? Post 302991506 by RudiC on Sunday 12th of February 2017 05:10:51 AM
Old 02-12-2017
Fully seconding my esteemed colleagues' advice that it definitely pays off to do a decent planning on data structures, algorithms, and desired outcomes instead of doing a later repair of accidents or errors, here's two hints on how to remove several cards from a fully shuffled full deck (assuming a recent bash shell):
Code:
for CU in ${PH[@]} ${CH[@]} $AC; do Deck=${Deck/${CU}$'\n'/};done

Code:
OI="$IFS"; IFS=$'\n'; grep -vf <(echo "${PH[*]}$IFS${CH[*]}$IFS$AC") <(echo "$Deck"); IFS="$OI"

 

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SHUF(1) 							   User Commands							   SHUF(1)

NAME
shuf - generate random permutations SYNOPSIS
shuf [OPTION]... [FILE] shuf -e [OPTION]... [ARG]... shuf -i LO-HI [OPTION]... DESCRIPTION
Write a random permutation of the input lines to standard output. Mandatory arguments to long options are mandatory for short options too. -e, --echo treat each ARG as an input line -i, --input-range=LO-HI treat each number LO through HI as an input line -n, --head-count=COUNT output at most COUNT lines -o, --output=FILE write result to FILE instead of standard output --random-source=FILE get random bytes from FILE -z, --zero-terminated end lines with 0 byte, not newline --help display this help and exit --version output version information and exit With no FILE, or when FILE is -, read standard input. AUTHOR
Written by Paul Eggert. REPORTING BUGS
Report shuf bugs to bug-coreutils@gnu.org GNU coreutils home page: <http://www.gnu.org/software/coreutils/> General help using GNU software: <http://www.gnu.org/gethelp/> Report shuf translation bugs to <http://translationproject.org/team/> COPYRIGHT
Copyright (C) 2010 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. SEE ALSO
The full documentation for shuf is maintained as a Texinfo manual. If the info and shuf programs are properly installed at your site, the command info coreutils 'shuf invocation' should give you access to the complete manual. GNU coreutils 8.5 February 2011 SHUF(1)
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