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Search and replace command

 
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# 1  
Old 06-22-2012
Search and replace command
Hi,
I wanted to replace the character '~' with \n (carraige retrurn or new line character)

I am tried the commands like

Code:
s/~/\n/g
 
s/~//\n/g

but the commands says that no "No match exists for the substitute pattern".
Last edited by methyl; 06-22-2012 at 08:19 AM..
# 2  
Old 06-22-2012
Code:
sed 's/~/\
/g'

# 3  
Old 06-22-2012
Hi,
Thanks for your reply, But I dont see any carriage return character metioned in your command.
Moreover I tried the command that you provided but i dont see the result. Could you please suggest me anyother ways of doing it.

My i/p file will look like

Code:
ISA*00**00**02*CN*ZZ*RECEIVERID*060628*0035*U*00201*000000612*0*P*> ~GS*IM*CN*APPLICATION RECEIVER ID*20060628*0035*612*X*004010 ~ST*210*612001~B3*B*28061234*102141*PP**20060628*208360****CNRU ~N1*PR*PAYERNAME*25*772305B~N3*123NEWBRIDGEROAD .~N4*ETOBICOKE*ON ~N1*CN*CONSIGNEENAME*25*772305~N3*1800INKSTERBLVD~N4*WINNIPEG SYMING YAR*MB*R2X2Z5 ~N1*SF*SHIP FROM NAME*25*772305 ~

I have change this as

Code:
ISA*00**00**02*CN*ZZ*RECEIVERID*060628*0035*U*00201*000000612*0*P*> 
GS*IM*CN*APPLICATION RECEIVER ID*20060628*0035*612*X*004010 
ST*210*612001
B3*B*28061234*102141*PP**20060628*208360****CNRU 
N1*PR*PAYERNAME*25*772305B
N3*123NEWBRIDGEROAD .
N4*ETOBICOKE*ON 
N1*CN*CONSIGNEENAME*25*772305
N3*1800INKSTERBLVD
N4*WINNIPEG SYMING YAR*MB*R2X2Z5 
N1*SF*SHIP FROM NAME*25*772305

Last edited by methyl; 06-22-2012 at 08:15 AM.. Reason: Please use code tags.
# 4  
Old 06-22-2012
You see the back-slash in the command? Right after it, I have pressed Enter (or Return). So, I am escaping the newline and telling sed to treat it as a new-line character for replacement...
# 5  
Old 06-22-2012
It gives syntax error for when I execute it in a script as you have mentioned.
# 6  
Old 06-22-2012
Try the unix tr command:

Code:
cat inputfile | tr '~' '\n' > outputfile

I get a virtually perfect match to your sample output (including sporadic trailing space characters), except that the very last ~ causes a trailing blank line in the output file.
Last edited by methyl; 06-22-2012 at 09:00 AM.. Reason: typos in wording
# 7  
Old 06-22-2012
Elixir_sinari's suggestion should work fine. Make sure the backslash is the very last character on the first line.

Alternative sed that does allow \n :
Code:
sed 'y/~/\n/' infile

 
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