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Top Forums Shell Programming and Scripting remove strings of lowercase characters (with minimum length requirement) Post 302289393 by elbuzzo on Thursday 19th of February 2009 02:08:26 PM
Old 02-19-2009
remove strings of lowercase characters (with minimum length requirement)

Hi all,
I want to delete all lowercase characters from my file, but only strings of length 7 and more.
For example, how can I go from:

JHGEFigeIGDUIirfyfiyhgfoiyfKJHGuioyrDHG

To:

JHGEFigeIGDUIKJHGuioyrDHG

There should be a trick to add to sed 's/[a-z]//g', but I can't figure it out.
Thanks!
 

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STRINGS(1)						      General Commands Manual							STRINGS(1)

NAME
strings - find the printable strings in a object, or other binary, file SYNOPSIS
strings [ - ] [ -a ] [ -o ] [ -number ] [file ...] DESCRIPTION
Strings looks for ASCII strings in a binary file or standard input. Strings is useful for identifying random object files and many other things. A string is any sequence of 4 (the default) or more printing characters ending with a newline or a null. Unless the - flag is given, strings looks in all sections of the object files except the (__TEXT,__text) section. If no files are specified standard input is read. The options to strings(1) are: -a This option causes strings to look for strings in all sections of the object file (including the (__TEXT,__text) section. - This option causes strings to look for strings in all bytes of the files (the default for non-object files). -o Preceded each string by its offset in the file (in decimal). -number The decimal number is used as the minimum string length rather than the default of 4. SEE ALSO
od(1) BUGS
The algorithm for identifying strings is extremely primitive. Apple Computer, Inc. October 23, 1997 STRINGS(1)
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