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Top Forums Shell Programming and Scripting awk to update value based on pattern match in another file Post 303003009 by MadeInGermany on Wednesday 6th of September 2017 02:09:02 PM
Old 09-06-2017
You need to cycle through each character, as you maybe intended in post#1; you need substr() to cut out a single character.
Code:
awk '
  BEGIN { OFS="\t" }
  # The input files are processed one by one and the following code runs for each line
  # FNR is equal to NR when processing file1
  # a[ ] is indexed by the one letter code, its value is the three letter code
  FNR==NR { a[$1]=$2; next }
  # The next goes to the next input cycle
  # The following code runs for file2 (and further files)
  ($12 ~ /:NM_/ && match($12,/p..*/)) {  # search for :NM_ and p..*
    # Get the substring after p.
    VAL=substr($12,RSTART+2)
    # Get its length
    lenVAL=length(VAL)
    ostring=""
    # Cycle through each character, append to ostring, if in a[ ] replace by its value
    for (i=1; i<=lenVAL; i++) {
      c=substr(VAL,i,1)
      ostring=(ostring ((c in a) ? a[c] : c))
    }
    # copy ostring back to $12 (unconditionally), retaining the part up to p.
    $12=(substr($12,1,RSTART+1) ostring)
  }
  # always print
  { print }
' file1 FS="\t" file2

I have reverted to define FS after reading file1, because file1 might not be TAB-separated.
This User Gave Thanks to MadeInGermany For This Post:
 

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mailq(1)						      General Commands Manual							  mailq(1)

NAME
mailq - prints the mail queue SYNOPSIS
DESCRIPTION
prints a summary of the mail messages queued for future delivery. The first line printed for each message shows the internal identifier used on this host for the message, the size of the message in bytes, the date and time the message was accepted into the queue, and the envelope sender of the message. The second line shows the error message that caused this message to be retained in the queue; it will not be present if the message is being processed for the first time. The status characters are: to indicate that the job is being processed to indicate that the load is too high to process the job to indicate that the job is too new in the queue to process. The output lines that follow the second line show the message recipients, one per line. is identical to Options The supported options are: Show the mail submission queue specified in the file instead of the MTA queue specified in the file. Show the lost items in the mail queue instead of normal queue items. Show the quarantined items in the mail queue instead of the normal queue items. Limit processed jobs to those containing substr as a substring of the queue ID or not when is specified. Limit processed jobs to quarantined jobs containing substr as a substring of the quarantine reason or not when is specified. Limit processed jobs to those containing substr as a substring of one of the recipients or not when is specified. Limit processed jobs to those containing substr as a substring of the sender or not when is specified. Print verbose information. This adds the priority of the message and a single character indicator or blank) indicating whether a warning message has been sent on the first line of the message. In addition, extra lines may be intermixed with the recipients indicating the `controlling user' information. This shows who owns the programs that are executed on behalf of this message and the name of the alias this command expanded from, if any. RETURN VALUE
The utility exits with 0 on success, and >0 if an error occurs. AUTHOR
was developed by the University of California, Berkeley, and originally appeared in 4.0BSD. FILES
mail queue files for SEE ALSO
sendmail(1M). mailq(1)
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