Question

need to delete a file and then process further.

del file.html

echo  ^<center^>^<a href="abc.html"^>ABC^</a^>^</center^> >> file.html
......
echo  ^<center^>^<a href="xyz.com"^>XYZ^</a^>^</center^> >> file.html

at first time i got this message Could Not Find C:\Users\file.html but processed further to write into the file. I want to know, can it stop processing further at any stage if the file is not found to delete ?

Answer 1

According to this question – Can I have an IF block in DOS batch file? – DOS can do if branching via

if <statement> (
    do something
) else (
    do something else
)

And then from this MS Support article you can use EXIST and NOT EXIST with files. So my guess would be:

if EXIST file.html del file.html

Just by the bye, if you wanted to do this in bash (via Cygwin on Windows), it is rather easier as bash has more support for this stuff than DOS:

f="file.html";
if [ -e "$f" ] ; then 
    rm "$f";
fi

You appear to be appending things to the file, line by line. If there is no processing going on in these lines, you can just concatenate them using copy:

copy chunkA.html+chunkB.html+chunkD.html file.html

That offers the significant benefit that you separate the files containing the data from the script that is stitching them together.