Re: Need help with search-and-replace

From: Ian Harding <iharding(at)pakrat(dot)com>
To: pgsql-sql(at)postgresql(dot)org
Subject: Re: Need help with search-and-replace
Date: 2001-05-05 23:33:04
Message-ID: 3AF48DB0.295E04FF@pakrat.com
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There are oh-so-many ways, as I am sure people will tell you. regular
expressions are the most wonderful things for such a task. I am comfortable
with tcl, so I would read the file into a tcl variable and use 'regsub -all
{\t700:00:00} $instring {} outstring'.

There are unbelievably simple, unvbelievably fast ways to do this in one line
from the shell using sed, but I don't speak sed. I suspect someone will hook
you up with some basic sed.

Try this in Windows. Visual Basic can use regular expressions, but you have to
instantiate a regular expression object, then execute one of it's methods to do
anything. Ugh.

Ian

Josh Berkus wrote:

> Folks,
>
> I need to strip certain columns out of my pgdump file. However, I
> can't figure out how to use any Unix-based tool to search-and-replace a
> specific value which includes a tab character (e.g. replace "{TAB}7
> 00:00:00" with "" to eliminate the column).
>
> RIght now, I'm copying the file to a Win32 machine and using MS Word
> for the search-and-replace, but I'm sure there's got to be a better way
> ... *without* learning VI or Emacs. Help?
>
> -Josh
>
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