Another data extraction question

Shell Programming and Scripting
1

Hi,

I have a tmp file like below:

<ADATA>
 ANUM=900
ADESC=Saving
ATYP=0
TXREGD=0
</ADATA>
 
<ADATA>
ANUM=890
ADESC=Saving
ATYP=0
ABAL=9000
TXREGD=1
</ADATA>
 
<ADATA>
 ANUM=900
ADESC=Check
ATYP=1
</ADATA>
 
<ADATA>
ANUM=890
ADESC=Saving
ATYP=0
ABAL=9000
TXREGD=1
</ADATA>

From above <ADATA> and </ADATA> container, I need ANUMs which has TXREGD only.

2 
awk '
  BEGIN { RS=""; ORS = "\n\n" }
  /TXREGD/ ' "$FILENAME"
3

I am new to Unix, can you please explain me what is RS and ORS stands for.
I need ANUMS and TXREGD fields from each <ADATA> and </ADATA> container.

4

User-modified Variables - Awk User Guide

5

Record Separator and Output Record Separator

awk '
  BEGIN { RS="" }
  /TXREGD/ ' "$FILENAME" | grep -e ANUMS -e TXREGD
6

cat tmp.file | grep -e ANUM -e TXREGD

gives me all ANUMs and TXREGDs.

But I need ANUMs which has TXREGD only.

And I should know which ANUM has which TXREGD.

Ex:
ANUM=900
TXREGD=0

ANUM=890
TXREGD=1

Thanks

7

There's no need for cat.

grep -e ANUM -e TXREGD tmp.file

Did you try the script I posted?

 awk '
  BEGIN { RS=""}
  /TXREGD/ ' "$FILE"  |
 awk '/ANUM/ { print } /TXREGD/ { print; print ""}'