grep a word and print this line and column 1, column 3 of next three line

Question

I have a text like this,

test to print 
1     aa    ee    0.000     0.000     0.000
2     bb    ff    0.000     0.000     0.000
3     cc    gg        0         0         0

I want to print out like below,

               1   2  3
test to print  ee ff gg

or just

test to print  ee ff gg

how to do that ?

For inspiration you could have a look at this: stackoverflow.com/a/1729980/3593896 — Webber
There's not a single command to do what you want. You'll have to write some code. — Andy Lester
SO is not a code writing service; you're expected to show your effort (eg, research, code); consider reviewing how do I ask a good question and then come back and update the question accordingly; in particular, show the code you've tried and the (wrong) output generated by your code — markp-fuso
what string are you attempting to grep on? what happens if there are multiple lines with matches ... process all matches? process just the first match? and what happens if there's an overlap (eg, every other line has a grep match)? — markp-fuso

jhnc jhnc · Accepted Answer · 2022-07-27T17:53:04

$ mygrep(){
   grep -A3 "$@" | awk '
      NR%4==1 { c1r2=$0; next }
      NR%4==2 { c2r1=$1; c2r2=$3; next }
      NR%4==3 { c3r1=$1; c3r2=$3; next }
      NR%4==0 { c4r1=$1; c4r2=$3
                printf " \t%s\t%s\t%s\n%s\t%s\t%s\t%s\n",
                             c2r1, c3r1, c4r1,
                       c1r2, c2r2, c3r2, c4r2
              }
   ' | column -t -s $'\t'
}

$ mygrep test <<'EOD'
test to print 
1     aa    ee    0.000     0.000     0.000
2     bb    ff    0.000     0.000     0.000
3     cc    gg        0         0         0
EOD
                1   2   3
test to print   ee  ff  gg

grep a word and print this line and column 1, column 3 of next three line

2 Answers