UNIXファイル行数を複数のタイプのレコード歌手と比較する

使用アッ:

awk '/^000[1-4]/{ rec[substr($0, 1, 4)+0]++; totalRec++ }
END{ trailTotalRec=substr($0, 5, 3)+0
     for(i=1; i<=4; i++) { trailRec[i]=substr($0, pos+8, 3)+0; pos+=3 }
    if(trailTotalRec==totalRec)
        print "Overall detail row count", totalRec, "matches with trailer record count", trailTotalRec"."
    for(i=1; i<=4; i++) {
        print "Row count for 000" i, "record type", rec[i], (trailRec[i]==rec[i]?"matches":"does not"), "with trailer record count", trailRec[i]"."
        if(trailRec[i]!=rec[i]) { print "Stopping execution."; exit 7 }
    }
}' infile

#!/usr/bin/awk -f

/^000[0-9]/ {
    i=substr($1,1,4);
    sub(/^0+/,"",i);
    bc[i]++;   # bc = body count array
    rtotal++;
}

/^T999/ {
  dc = substr($0,5,3);
  for (r in bc) {
    rc[r] = substr($0,(r-1)*3+8,3); # rc = row count array
    sub(/^0+/,"",rc[r]);
    ttotal+=rc[r]
  };
}

END {
  if (dc == rtotal) {
    printf "Overall detail row count %i matches with trailer record count %i.\n", rtotal, dc;
  } else {
     print "Row count %i does not match trailer record count %i", rtotal, dc;
     exit 1;
  }
  for (r in rc) {
    if (rc[r] == bc[r]) {
      printf "Row count for %04i record type %i matches with trailer record count %i.\n", r, bc[r], rc[r];
    } else {
      printf "Row count for %04i record type %i does not match with trailer record count %i.\n", r, bc[r], rc[r];
      print "Stopping execution"
      exit 2;
    };
  };
}

これはT999トレーラーラインを想定しています。〜する配列の各行には、データ数（dc）ANDの3つの文字がありますbc。

データにエラーがある場合、1（合計行数が尾のデータの総数と一致しない）または2（合計行数が尾のデータの総数と一致しない）で終了します。 。たとえば、シェル組み込み変数（最後のコマンドの終了コード）を含むシェルケースステートメントで$?テストして使用できます。

 #!/bin/sh

 ./summarise.awk file.txt
 ec="$?"
 case "$ec" in
    0) probably_do_nothing ;; # success! 0 == no error
    1) do_something ;;
    2) do_another_thing ;;
 esac

たとえば、として保存し、summarise.awkを使用して実行可能にしますchmod +x summarise.awk。

$ ./summarise.awk file.txt 
Overall detail row count 8 matches with trailer record count 8.
Row count for 0001 record type 2 matches with trailer record count 2.
Row count for 0002 record type 2 matches with trailer record count 2.
Row count for 0003 record type 3 does not match with trailer record count 4.
Stopping execution

$ cat tst.awk
/^[0-9]/ {
    currType = substr($0,1,4)
    if ( currType != prevType ) {
        recNr2type[++actNumRecs] = currType
        prevType = currType
    }
    recNrs2rowCnts[actNumRecs]++
    actTotRows++
    next
}
{ trailer = $0 }
END {
    expTotRows = substr(trailer,5,3)+0

    result = (actTotRows == expTotRows ? "matches" : "does not match")
    printf "Overall detail row count %d %s with trailer record count %d.\n", \
        actTotRows, result, expTotRows

    trailer = substr(trailer,8)
    while ( (trailer != "") && (result == "matches") ) {
        expRowCnt = substr(trailer,1,3)+0
        actRowCnt = recNrs2rowCnts[++expNumRecs]
        type      = recNr2type[expNumRecs]

        result = (actRowCnt == expRowCnt ? "matches" : "does not match")
        printf "Row count for %s record type %s %s with trailer record count %d.\n", \
            actRowCnt, type, result, expRowCnt

        trailer = substr(trailer,4)
    }

    print "Stopping execution."
}

$ awk -f tst.awk file
Overall detail row count 8 matches with trailer record count 8.
Row count for 2 record type 0001 matches with trailer record count 2.
Row count for 2 record type 0002 matches with trailer record count 2.
Row count for 3 record type 0003 does not match with trailer record count 4.
Stopping execution.