Re: Idea: jobs(1) -i to print only :%ID:s

[alex xmb sw ratchev]

On Thu, Nov 9, 2023, 8:41 PM alex xmb sw ratchev <fxmbsw7@gmail.com> wrote:

>
>
> On Thu, Nov 9, 2023, 8:36 PM Steffen Nurpmeso <steffen@sdaoden.eu> wrote:
>
>> alex xmb sw ratchev wrote in
>>  <CAALKErE1Uq1XmXw_8zdij2gGz-GxB9S9PA5f43vYONVKtmRDNA@mail.gmail.com>:
>>  ...
>>  |> So i did that (what a mess -- does anyone know how i can create an
>>  |> awk regular expression where parts of the expression is a variable
>>  |> that should be expanded?  ugh!  what do i know??):
>>  |
>>  |awk -v var1='cont ent' -vv2="$other' ' { code } '
>>  |
>>  |keep in mind that mass spawning of any bin is , when its done massley ,
>>  |very out ..
>>
>> i fail to see what this has to do with my problem.
>>
>>  |also var so awk processes some \esc caracters
>>  |to cleanly insert data , either use gawk ENVIRON["varname']
>>  |or via alternative fd or as part of file parse things
>>
>>  |my='a b c'
>>  |# one line string
>>  |awk 3<<<"$my thing' BEGIN { f = "/dev/fd/3" ; getline v <f ; close( f )
>> }
>>  |other main code here '
>>
>> i am still wondering.
>>
>>  |foo=content
>>  |export foo
>>  |or foo=$foo gawk ..
>>  |gawk -vv=foo ' BEGIN { v = ENVIRON[ v ] } other code '
>>  |same as v = ENVIRON[ "v" ] or "varname"
>>
>> wow.
>>
>>  |to match in string , thers two ways , one is exact text match , the
>> other
>>  |is regex
>>  |
>>  |if u /foo/ thats a regex
>>
>> really?
>>
>>  |$0 ~ "foo"
>>  |
>>  |tx=" my text "
>>  |if ( $0 ~ "pre" tx "stu" ) { ye }
>>
>> this does not work the way you think maybe?
>> I surely was there myself.
>>
>>  |thers additional stuff to say containing substr() and match() , and some
>>
>> even with match() not (in a global match line).
>>
>>  |others
>>  |
>>  |#exact
>>  |etx = " exact "
>>  |if ( index( $0 , etx ) ) { ye }
>>  |if ( index( $0 , "pre" etx "stu" ) ) { ye }
>>
>> i am really impressed.
>> But that did not work out.
>>
>
> can u detail ur case some
> i suggest using index
> if u match or ~ u regex
> means ur input s gotta get regex char escaped
> unless u have a very special reason , use index
> and not care about awk var \esc seq expandment
> at least when have simple strings
>
> eg
>
> m=bar txt=' foo
>  bar
> bla '
> awk -vm="$m" ' index( $0 , m ) '
>

sorry missed again a detail

awk -vm="$m" ' index( $0 , m ) ' <<<"$txt"

should return the bar line
> ' bar ' would also match
> '  bar  ' of course not
>
> --steffen
>> |
>> |Der Kragenbaer,                The moon bear,
>> |der holt sich munter           he cheerfully and one by one
>> |einen nach dem anderen runter  wa.ks himself off
>> |(By Robert Gernhardt)
>>
>