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Full Discussion: Find & Replace with same case letters
Top Forums UNIX for Dummies Questions & Answers Find & Replace with same case letters Post 302926168 by grep_me on Friday 21st of November 2014 02:35:33 PM
Old 11-21-2014
Find & Replace with same case letters
I have text with upper and lower case words. I want to find something and replace it with something new. But it should match the case - Meaning - it should replace old upper cased word with NEW upper case word and lower with lower.

example:
Code:
this text is very simple TEXT.

now I want to replace both cases of "text" with word to match with case.
output should be
Code:
this word is very simple WORD.

text is replace with word and TEXT with WORD.

Is there a way to do this in sed or some other command - without the use of a loop.
Thanks in Advance
 

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LEARN ABOUT DEBIAN

sucrack

SUCRACK(1)						      General Commands Manual							SUCRACK(1)

NAME

       sucrack - is a multithreaded Linux/UNIX tool for brute-force cracking of local user accounts via su.

SYNOPSIS

       sucrack [options] wordlist

DESCRIPTION

       sucrack is a multithreaded Linux/UNIX tool brute-force cracking tool that drives su(1) with referencing a specific user and uses words from
       a wordlist as passwords. Running sucrack does not require high privileges on the target system.

OPTIONS

       sucrack allows reading passwords from stdin. In that case, use '-' instead of a filename as wordlist parameter.

       Common options:

       -h     print help message

       -a     use ansi escape codes for nice looking statistics (requires --enable-statistics configuration flag)

       -s <seconds>
	      statistics display intervall (requires --enable-statistics configuration flag)

       -c     only print statistics if a key other than `q' is pressed

       -r     enable rewriting of dictionary words (see rules below)

       -w <num>
	      number of threads to run with.

       -b <size>
	      size of the word list buffer

       -u <user>
	      user account to su to

       -l <rules>
	      specify certain rules for the rewriting process

       Rewriting rules:

       A      Rewrite word with only upper case characters

       F      Rewrite word with first character as upper case

       L      Rewrite word with last character as upper case

       a      Rewrite word with only lower case characters

       f      Rewrite word with first character as lower case

       l      Rewrite word with last character as lower case

       D      Prepend each digit (0-9) to the word

       d      Append each digit (0-9) to the word

       e      enleet the word

       x      apply all rules to a word

ENVIRONMENT VARIABLES

       SUCRACK_SU_PATH
	      The path to su (usually /bin/su or /usr/bin/su)

       SUCRACK_AUTH_FAILURE
	      The message su returns on an authentication failure (like "su: Authentication failure" or "su: Sorry")

       SUCRACK_AUTH_SUCCESS
	      The message that indicates an authentication success. This message must not be  a  password  listed  in  the  wordlist  (default	is
	      "SUCRACK_SUCCESS")

AUTHOR

       Nico Leidecker <nfl@portcullis-security.com>
	      http://www.leidecker.info

SEE ALSO

       su(1)

								   Version 1.2.3							SUCRACK(1)
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