add hex value to text file

[cbsm]

Hello,

I have a txt file like this text.txt :
Line1
Line2
Line3
I need to add X’03320000’ (as hex value) at the begining of each line (it represent the size of the line - in my case each line is the same size - which should make things easier).

Has anyone an idea ?

Thank you !

 

[cbsm]

A few things a tried (no success) :

1.
RDW="\x03\x32\x00\x00"
LINE="t"
echo "$RDW$LINE" > result.txt
=> adds \x03\x32\x00\x00t (all ascii) in result.txt

2.
a=`cat hexfile` (or a=$(<hexfile))
sed `s/^/"${a}";/` < test.txt > result.txt
where hexfile is a file with the hex value I need (created using UltraEdit).

=> error messages : s/^/^C2: not found [No such file or directory]

​

: /: cannot execute [Is a directory]

3.a=`cat hexfile` (or a=$(<hexfile))
awk `{ printf ${a}";%s\n", $0 }` < test.txt > result.txt

=> error message : `{' unmatched

...

 

[PHV]

What about this ?
awk 'BEGIN{getline a<"hexfile"}{print a";"$0}' test.txt >result.txt

Hope This Helps, PH.
FAQ219-2884
FAQ181-2886

 

[cbsm]

Thank you ... but it did not work ...
BEGIN: not found [No such file or directory]

I tried without the BEGIN, and I get the same errors as before (`{' unmatched).

 

[PHV]

USe single quotes instead of backquotes.

Hope This Helps, PH.
FAQ219-2884
FAQ181-2886