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Full Discussion: sed command on AIX, replace specific characters
Top Forums Shell Programming and Scripting sed command on AIX, replace specific characters Post 302995072 by dsid on Friday 31st of March 2017 11:18:55 AM
Old 03-31-2017
Quote:
Originally Posted by jim mcnamara
You are using GNU sed syntax. -i means 'in place' the -i.Original is a suffix to add to a tmp file so you can get your old file back if there was an error. -r is also not standard.

See: sed

You should read the man page for sed on your AIX FIRST before doing copy of code from here.
Code:
sed 'pattern and instructions go here'  inputfile >tmpfile
# if no mistakes in tmpfile be sure to check it; then
mv tmpfile inputfile

sorry about that, I actually modified the code above to suit the AIX sed and am using the below code now
Code:
$cat v.txt
4000422985400050170315170328000000000006333522000000000173000160000000MS000000652363009301030000800000013111000460021000060000000726710035001200000000000000000000000000
$sed '/^4000/s/\(.\{136\}\)000/\1036/' v.txt
4000422985400050170315170328000000000006333522000000000173000160000000MS000000652363009301030000800000013111000460021000060000000726710035001203600000000000000000000000

what confuses me is why are the characters are positions 143,144 and 145 changing when i think the above AIX sed code only replaces characters at positions 137-139
 

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              Select data or query XML document(s) (XPATH, etc).

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              Transform XML documents(s) using XSLT.

       val (or validate)
              Validate XML document(s) (well-formed/DTD/XSD/RelaxNG).

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              Format XML document(s).

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              XML canonicalization.

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