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Hi Folks,

I have a file with all fields defined by byte position, but any field can be empty so I cannot print lines based on a search of specific columns. I need to print all lines of this file...

You are correct, thanks Ygor! I was getting a syntax error as awk before so I altered it then changed it to nawk without replacing the changes i had made in awk. It does exactly what I need with a...

Nawk works better but still not 100%, the code is now:

nawk '{for(i=1;i<=length;i++)
printf((i>=1&&i<=3||i>=203&&i<=240||i>=260&&i<=289), substr($0,i,1))}' file_in > file_out

but my file in...

Thanks everyone, this last post from Ygor looks like the easiest option. I've been playing with it this morning but getting a syntax error I can't get past.

awk: syntax error near line 2
awk:...

Thanks everyone.

my samples are simplified so what I actually have are lines 300 bytes long.

I need to print bytes 1-3, 203-240, and 260-289, with blank spaces between so the output remains in...

Hi Manish

This does print the correct positions but does not fill in the spaces between with the same number of bytes turned to blanks that were in the original. For example, if we take the...

Hi folks

I have a file with thousands of lines with fixed length fields:

sample (assume x is a blank space)

111333xx444TTTLKOPxxxxxxxxx

I need to make a copy of this file but with only...

Hi Folks

Quick one I can't seem to figure out sed wildcards..

I need to replace a string such as "From here.....to here".

I would think the command would look like:
sed 's/From here*to...