capturing the value in file before string(*) using sed

Shell Programming and Scripting
1

I am trying to capture the last value before the the * in test4.txt file using sed & tail (in this case 0FA). I got the output using the below steps.

P.s: The number of * in the file varies from file to file.

Any idea of a better way to do this?

cat test4.txt

                           1234  Not Visible                     0   00  046
                           5678  Not Visible                     0   00  047 *
                           0123  Not Visible                     0   00  0F0
                           0234  Not Visible                     0   00  0F1
                           0567  Not Visible                     0   00  0F2
                           0789  Not Visible                     0   00  0F3
                           1256  Not Visible                     0   00  0F4 *
                           0912  Not Visible                     0   00  0F5
                           0546  Not Visible                     0   00  0F6
                           0678  Not Visible                     0   00  0F7
                           0734  Not Visible                     0   00  0F8
                           1432  Not Visible             (M)    0   00  0F9
                           -     AVAILABLE                       0   00  0FA *
    Total                  ----
    Mapped Devices:          42
    Including Metamembers:  311
    Available Addresses:   2612 (s)

Legend for Available address:

(*): The VBUS, TID, LUN address values represent a gap in the
     address assignments or are the next available address in
     the run
(s): The Available Addresses for a director are shared among
     its ports (shared)

sed -n '/*/p' test4.txt  >>test3.txt

tail -2 test3.txt |sed 's/.*\(....\)*.*/\1/' >> /var/tmp/test2.txt

sed '$d' lun2.txt >> /var/tmp/test1.txt

rm /var/tmp/test4.txt
rm /var/tmp/test3.txt
rm /var/tmp/test2.txt

cat test1.txt 
OFA
2

Try this...

sed -n 's/.* \(.*\) \*$/\1/p' infile
047
0F4
0FA

#or

sed -n 's/.* \([0-9A-Z]*\) \* *$/\1/p' infile
047
0F4
0FA

--ahamed

1 Like
3

In nawk ..

$ nawk '/\*/{print $(NF-1)}' infile
047
0F4
0FA
1 Like