Help with sed/awk for reverse search and print Post: 302496365

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suppose i have one file file A 18 24 30 35 38 45 55 Another file file B 08_46 A 16 V -0.36 0.23 E : 1.41 08_46 A 17 D -1.04 0.22 E : 0.84 08_46 A 18 Q -0.49 0.12 E : 0.06 08_46 A 19 G 0.50 0.14 E : 0.05 08_46 A 20 V ...

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GOODNUMBERS="1 2 3 4 5 6 3 3 34 34 5 66 12" BADNUMBERS="7 3 12 5 66" for eachnum in `echo ${GOODNUMBERS}` do echo ${BADNUMBERS} | gawk -v threshold=${eachnum} '$1 != threshold' done what im trying to do with the above is, i want to print numbers that are in the GOODNUMBERS...

LEARN ABOUT PLAN9

tac

TAC(1)                                                             User Commands                                                            TAC(1)

NAME

       tac - concatenate and print files in reverse

SYNOPSIS

       tac [OPTION]... [FILE]...

DESCRIPTION

       Write each FILE to standard output, last line first.

       With no FILE, or when FILE is -, read standard input.

       Mandatory arguments to long options are mandatory for short options too.

       -b, --before
              attach the separator before instead of after

       -r, --regex
              interpret the separator as a regular expression

       -s, --separator=STRING
              use STRING as the separator instead of newline

       --help display this help and exit

       --version
              output version information and exit

AUTHOR

       Written by Jay Lepreau and David MacKenzie.

REPORTING BUGS

       GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
       Report tac translation bugs to <http://translationproject.org/team/>

COPYRIGHT

       Copyright (C) 2017 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

       rev(1)

       Full documentation at: <http://www.gnu.org/software/coreutils/tac>
       or available locally via: info '(coreutils) tac invocation'

GNU coreutils 8.28                                                 January 2018                                                             TAC(1)

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