（sed / awk）从文本到csv文件中提取值-偶数/奇数行模式

Question

I need to export some numeric values from a given ASCII text file and export it in a specific formatted csv file. The input file has got the even / odd line pattern:

 SCF Done:  E(UHF) =  -216.432419652     A.U. after   12 cycles
 CCSD(T)= -0.21667965032D+03
 SCF Done:  E(UHF) =  -213.594303492     A.U. after   10 cycles
 CCSD(T)= -0.21379841974D+03
 SCF Done:  E(UHF) =  -2.86120139864     A.U. after    6 cycles
 CCSD(T)= -0.29007031339D+01
 and so on

I need the odd line value in the 5th column and the even line 2nd column value. They should be printed in a semicolon seperated csv file, with 10 values in each row. So the output should look like

-216.432419652;-0.21667965032D+03;-213.594303492;-0.21379841974D+03;-2.86120139864;-0.29007031339D+01; ...linebreak after 5 pairs of values

I started with awk '{print $5}' and awk '{print $2}' , however I was not successful in creating a pattern that just acts on even/odd lines.

A simple way to do that?

Answer 1

The following script doesn't use a lot of the great power of awk , but will do the job for you and is hopefully understandable:

NR % 2 { printf $5 ";" }
NR % 2 == 0 { printf $2 ";" }
NR % 10 == 0 { printf "\n" }
END { printf "\n" }

Usage (save the above as script.awk ):

awk -f script.awk input.txt

Answer 2

Something like this could work -

awk '{x = NF > 3 ? $5 : $2 ; printf("%s;",x)}(NR % 10 == 0){print OFS}' file
     |_____________________|       |________| |___________||_________|
               |                        |           |           |
     This is a `ternary operator`,  Print with `NR` is a    `OFS` is another built-in
  what it does is checks the line  formatting  a built-in    that has a default value of
  for number of fields (`NF`). If    to add    that keeps    `\n`
 the number of fields is more than    a ";"    track of 
 3, we assign $5 value to variable x          number of lines.
      else we assign $2 value                 We are using modulo  
                                             operator to check when
                                             10 lines are crossed.

Answer 3

给定一个名为data.txt的文件，请尝试：

awk '/SCF/{ printf $5 ";"; } /CCSD/{ printf($2); } NR % 10 == 0 { printf "\n"; }' data.txt

Answer 4

这可能对您有用：

 tr -s ' ' ',' <file | paste -sd',\n' | cut -d, -f5,11 | paste -sd',,,,\n'