Hi,
I have browsed old messages but I have not found any good answer to how
to substitute a end of line character.
This is what I want to do:
I have a file that ends like
myArray[someBigSize] = {
0x78u, 0x0f
};
So I want sed to find the eol and replace it so that the file looks
like
0x78u, 0x0fu
};
i.e. the 'u' is added but the rest is keept intact.
This is what I tried to do
sed "s/\n\}\;/u\n\}\;/" < myFile.c
But this wont do it for me?
Why?

di98mase wrote:
Hi,

I have browsed old messages but I have not found any good answer to how
to substitute a end of line character.

This is what I want to do:

I have a file that ends like
myArray[someBigSize] = {
.
.

0x78u, 0x0f
};

So I want sed to find the eol and replace it so that the file looks
like

0x78u, 0x0fu
};

i.e. the 'u' is added but the rest is keept intact.

This is what I tried to do

sed "s/\n\}\;/u\n\}\;/" < myFile.c

But this wont do it for me?

Why?

The virtual end of line marker is the $ character.

s/$/u/

if you just want to change certain files that, e.g., have a comma
somewhere in the line

/,/s/$/u/

Janis

di98mase wrote:
Hi,

I have browsed old messages but I have not found any good answer to how
to substitute a end of line character.

This is what I want to do:

I have a file that ends like
myArray[someBigSize] = {
.
.

0x78u, 0x0f
};

So I want sed to find the eol and replace it so that the file looks
like

0x78u, 0x0fu
};

i.e. the 'u' is added but the rest is keept intact.

This is what I tried to do

sed "s/\n\}\;/u\n\}\;/" < myFile.c

But this wont do it for me?

Why?

If you want to search only the last 3 lines for the replacement, you
may try:

perl -0777pe 's/(\S)([\n\s]*};\s*)\z/\1u\2/' myfile.txt

which slurps in the whole file as a string and then modifies it, or

tac myfile.txt | sed '3s/$/u/' | tac

looks clumsy, but it should work, :-)

Xicheng

Hi Xicheng,

your pearl command did it! I must say that I have a bit hard to
understand exactly what it does but it works. I did try Janis
suggestions but it seems that sed only "acts" on each line at a time
thus I can not search for a EL on one line + }; that comes on the next
line

Thanks Janis and Xicheng

/Sebastian