I have below string in my DDL file and i want to remove the last ) character.

DDL has the ) character in many places, but I want to remove only in below place indicated.

`event_sts` string,
  `rsn_code` string)
ESCAPED BY '\\\\')                     <----- here

I tried using sed but somehow it's not working.

note: I have many DDLs with same requirement so the occurrence of '(' is not static.

  • 1
    awk '/ESCAPED/ {sub(/\)$/,"")}1' file
    – jasonwryan
    Aug 27 '16 at 23:20
  • thanks for reply.but sorry. it didnt work. Aug 27 '16 at 23:23
  • @dileepvarma Do you want to remove ) only if it is the last character on the last line in the file? Or do you want to remove all ) whenever they on a line that contains ESCAPED? Or something else? Please clarify.
    – John1024
    Aug 27 '16 at 23:43
  • i need whenever line contains ESCAPED only. Aug 27 '16 at 23:49
  • What didn't work? Use gsub if it is for every instance...
    – jasonwryan
    Aug 28 '16 at 0:26

This will remove all ) from any line that contains ESCAPED:

sed '/ESCAPED/s/)//g' filename

To change the file in-place:

sed -i.bak '/ESCAPED/s/)//g' filename

How it works


    This selects only those lines that contain ESCAPED.

  • s/)//g

    For the selected lines, this removes all ).

    The substutute command typically looks like s/old/new/ which looks for regular expression old and replaces it with new. In our case old is ) and new is an empty string. Consequently ) is removed. The g at the end of the command tells sed to do this for every occurrence of ) on the line, not just the first.


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