SED - Need to change string but maintain original case

[smitp11]

Hi,

I need to edit a file using SED and replace a string but maintain the case of the original string.

ie Change:

HRP1 to HRS1
hrp1 to hrs1
HrP1 to HrS1

I can do this with multiple edit commands but wondered if there was a way of doing it in one edit command ?

 

[tikual]

Try it:

/[Hh|Rr].1/{
s/P1/S1/
s/p1/s1/
}

tikual

 

[tikual]

sorry for my typo:

/[Hh][Rr].1/{
s/P1/S1/
s/p1/s1/
}

tikual

 

[smitp11]

I could not get that command to work:

sed /[Hh|Rr].1/{s/P1/S1/s/p1/s1/} D:\pat.txt > D:\pat_mod.txt

returns:

sed: newline or end of file found in pattern
The name specified is not recognized as an
internal or external command, operable program or batch file.

 

[tikual]

Try again:
sed '/[Hh][Rr].1/{s/P1/S1/g;s/p1/s1/g;}' D:\pat.txt > D:\pat_mod.txt


tikual

 

[smitp11]

tikual,

That's work a reat. Many Thanks. Second question, how would you do the same thing for:

trn2452 to trn2453
TRN2452 to TRN2453 etc

Regards.

 

[PHV]

Try with this sed script:

'/[tT][rR][nN]2452/s/2452/2453/'

Hope This Help
PH.

 

[tikual]

Try it:

sed '/TRN[0-9]*2/{s/\(TRN[0-9]*\)2/\13/g;};/trn[0-9]*2/{s/\(trn[0-9]*\)2/\13/g;}' yourfile

tikual

 

[aigles]

You can also do :

sed -e 's/\([tT][rR][nN]\)2452/\12453/' input >output

Jean Pierre.

 

[smitp11]

Thanks for your help.
I used the post from tikual for my first question and the post from PHV for my second question.
Regards.