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Awk or Perl - to selectively merge two files.

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Top Forums Shell Programming and Scripting Awk or Perl - to selectively merge two files.
# 8  
Old 07-06-2012
Hi Folks,

Just a final update on this for anyone that is interested, the code below is as used to correct the layout of the date field from the old format to the required one - just incase anyone should find it useful.

Code:
$> nawk -F, '
> BEGIN { OFS = "," }
>
> $6 ~ "/"  {
>         split($6, a, "/")
>         $6 = sprintf("19%s-%s-%s",
>                 sprintf("%02d", a[3]),
>                 sprintf("%02d", a[1]),
>                 sprintf("%02d", a[2]) )
>
>         print
> }' < test_file
N1,GULFSTREAM AEROSPACE,G-IV,1071,FEDERAL AVIATION ADMINISTRATION,1992-10-26
N1A,GOODYEAR,GZ-20A,4117,GOODYEAR TIRE & RUBBER CO,1992-02-24
N1AA,CESSNA,414A,414A0482,RAGSDALE INVESTMENTS INC,1991-04-17
N1AC,EAA SPORT BIPLANE,HOME BUILT,3138,EAA AVIATION FOUNDATION INC,1992-03-31

$> cat te*
N1,GULFSTREAM AEROSPACE,G-IV,1071,FEDERAL AVIATION ADMINISTRATION,10/26/92
N1A,GOODYEAR,GZ-20A,4117,GOODYEAR TIRE & RUBBER CO,2/24/92
N1AA,CESSNA,414A,414A0482,RAGSDALE INVESTMENTS INC,4/17/91
N1AC,EAA SPORT BIPLANE,HOME BUILT,3138,EAA AVIATION FOUNDATION INC,3/31/92

Again guys thanks for the help.

Regards

Dave
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LEARN ABOUT MOJAVE

git-fmt-merge-msg

GIT-FMT-MERGE-MSG(1)                                                Git Manual                                                GIT-FMT-MERGE-MSG(1)

NAME

       git-fmt-merge-msg - Produce a merge commit message

SYNOPSIS

       git fmt-merge-msg [-m <message>] [--log[=<n>] | --no-log]
       git fmt-merge-msg [-m <message>] [--log[=<n>] | --no-log] -F <file>

DESCRIPTION

       Takes the list of merged objects on stdin and produces a suitable commit message to be used for the merge commit, usually to be passed as
       the <merge-message> argument of git merge.

       This command is intended mostly for internal use by scripts automatically invoking git merge.

OPTIONS

       --log[=<n>]
           In addition to branch names, populate the log message with one-line descriptions from the actual commits that are being merged. At most
           <n> commits from each merge parent will be used (20 if <n> is omitted). This overrides the merge.log configuration variable.

       --no-log
           Do not list one-line descriptions from the actual commits being merged.

       --[no-]summary
           Synonyms to --log and --no-log; these are deprecated and will be removed in the future.

       -m <message>, --message <message>
           Use <message> instead of the branch names for the first line of the log message. For use with --log.

       -F <file>, --file <file>
           Take the list of merged objects from <file> instead of stdin.

CONFIGURATION

       merge.branchdesc
           In addition to branch names, populate the log message with the branch description text associated with them. Defaults to false.

       merge.log
           In addition to branch names, populate the log message with at most the specified number of one-line descriptions from the actual
           commits that are being merged. Defaults to false, and true is a synonym for 20.

       merge.summary
           Synonym to merge.log; this is deprecated and will be removed in the future.

EXAMPLE

           $ git fetch origin master
           $ git fmt-merge-msg --log <$GIT_DIR/FETCH_HEAD

       Print a log message describing a merge of the "master" branch from the "origin" remote.

SEE ALSO

       git-merge(1)

GIT

       Part of the git(1) suite

Git 2.17.1                                                          10/05/2018                                                GIT-FMT-MERGE-MSG(1)