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Replace Forward Slash with sed

 
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# 8  
Old 09-28-2011
Hi Scottn,

Thanks for the code, but it still replaces the last line, any idea on how to skip the last line alone?
# 9  
Old 09-28-2011
Yes, it's the command I showed you, instead with single quotes, and two backslashes. More accurately put, it's radoulov's original solution with an extra backslash (and with $!s instead of 1s, since that was answering a slightly different question).

Code:
sed '$!s|^/|\\/|' file

This User Gave Thanks to Scott For This Post:
depakjan
# 10  
Old 09-28-2011
i tried with some test file for which it worked correctly but for my actual file it still replaces the last line.. so on analysis i found there are two blank lines as shown below ><

Code:
 
end;
/
(Blank line here) 
(Blank line here)

Sorry if i am asking too much , if there is any way for this ? ..

Can we search for 'end;' and skip the / which is coming after it or something .. is it even doable?
# 11  
Old 09-28-2011
Quote:
... if i could change the script to exclude the last line alone from this replace.
This question makes me think that the OP needs something different than my interpretation of:

Quote:
... when the forward slash occurs as a first character in a file
And yes, I've pointed out that the code was implementation-specific.

To the OP: If you post a bigger sample of your input and an example of the expected output you'll get a solution faster.
# 12  
Old 09-28-2011
This is the sample

Code:
 
declare
act_errors number(10, 0);
at_least_one_exception EXCEPTION;
err_num NUMBER;
err_msg VARCHAR2(1000);
begin
act_errors := 0;
dbms_output.put_line('Starting to process  '|| 'cdd');
begin
insert into CS_CASE
(CASE_ID,id,desc) VALUES
('c12', 
'nbkany2' , 
'Credit Card
/
card' , 
);
exception
when others then
act_errors := 28;
err_num := SQLCODE;
err_msg := SUBSTR(SQLERRM, 1, 1000);
dbms_output.put_line('Statement number ' || act_errors || ' failed (search for "act_errors := ' || act_errors || '" in the source file)');
dbms_output.put_line(err_msg );
end;
/
(blank line here)
(blank line here)

and the output should be

Code:
 
declare
act_errors number(10, 0);
at_least_one_exception EXCEPTION;
err_num NUMBER;
err_msg VARCHAR2(1000);
begin
act_errors := 0;
dbms_output.put_line('Starting to process  '|| 'cdd');
begin
insert into CS_CASE
(CASE_ID,id,desc) VALUES
('c12', 
'nbkany2' , 
'Credit Card
\/
card' , 
);
exception
when others then
act_errors := 28;
err_num := SQLCODE;
err_msg := SUBSTR(SQLERRM, 1, 1000);
dbms_output.put_line('Statement number ' || act_errors || ' failed (search for "act_errors := ' || act_errors || '" in the source file)');
dbms_output.put_line(err_msg );
end;
/
(blank line here) 
(blank line here)

# 13  
Old 09-28-2011
That was just a sample.. there could be multiple occurances of '\' coming as first character in that file.

Also because of the last two blank lines
We can no longer use
Code:
$!s|^/|\\/|

since '/' is not is not in the last line as i expected to be.

Maybe we can write a sed which will not replace the last occurance of '/' alone? .. is it possible?
Last edited by radoulov; 09-28-2011 at 05:26 PM.. Reason: Code tags!
# 14  
Old 09-28-2011
What tool/program generates that output (the PL/SQL code)?
 
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