Hi awk masters,
I need help how to compare output from 'last -x' (command cli from linux) with the file1.txt. if output from last -x is there new entry, then awk write the different in the file2.txt.
example:
result output from " last -x |grep 'shutdown\|reboot' " :
the file1.txt :
and the final output needed in the file2.txt :
and if the file2.txt has been updated, the file1.txt must have/update all entry. like this :
im very appreciate if all my brother in this forum to help me out.
thanks very much.
I need help how to compare output from 'last -x' (command cli from linux) with the file1.txt. if output from last -x is there new entry, then awk write the different in the file2.txt.
example:
result output from " last -x |grep 'shutdown\|reboot' " :
Code:
[root@localhost awk]# last -x |grep 'shutdown\|reboot'
reboot system boot 2.6.18-194.el5 Mon Jul 16 19:26 (00:09)
shutdown system down 2.6.18-194.el5 Mon Jul 16 03:36 - 19:36 (16:00)
reboot system boot 2.6.18-194.el5 Sun Jul 15 20:46 (06:48)
shutdown system down 2.6.18-194.el5 Fri Jul 13 03:59 - 03:35 (2+23:36)
reboot system boot 2.6.18-194.el5 Fri Jul 13 03:32 (00:26)
shutdown system down 2.6.18-194.el5 Fri Jul 13 03:29 - 03:59 (00:29)
reboot system boot 2.6.18-194.el5 Fri Jul 13 00:01 (03:27)
shutdown system down 2.6.18-194.el5 Thu Jul 12 23:59 - 03:29 (03:29)
reboot system boot 2.6.18-194.el5 Thu Jul 12 23:33 (00:26)
shutdown system down 2.6.18-194.el5 Thu Jul 12 23:31 - 23:59 (00:28)
reboot system boot 2.6.18-194.el5 Fri Jul 13 04:35 (-5:-3)Code:
[root@localhost awk]# cat file1.txt
shutdown system down 2.6.18-194.el5 Fri Jul 13 03:59 - 23:28 (2+19:28)
reboot system boot 2.6.18-194.el5 Fri Jul 13 03:32 (00:26)
shutdown system down 2.6.18-194.el5 Fri Jul 13 03:29 - 03:59 (00:29)
reboot system boot 2.6.18-194.el5 Fri Jul 13 00:01 (03:27)
shutdown system down 2.6.18-194.el5 Thu Jul 12 23:59 - 03:29 (03:29)
reboot system boot 2.6.18-194.el5 Thu Jul 12 23:33 (00:26)
shutdown system down 2.6.18-194.el5 Thu Jul 12 23:31 - 23:59 (00:28)
reboot system boot 2.6.18-194.el5 Fri Jul 13 04:35 (-5:-3)Code:
reboot system boot 2.6.18-194.el5 Mon Jul 16 19:26 (00:09)
shutdown system down 2.6.18-194.el5 Mon Jul 16 03:36 - 19:36 (16:00)
reboot system boot 2.6.18-194.el5 Sun Jul 15 20:46 (06:48)Code:
reboot system boot 2.6.18-194.el5 Mon Jul 16 19:26 (00:09)
shutdown system down 2.6.18-194.el5 Mon Jul 16 03:36 - 19:36 (16:00)
reboot system boot 2.6.18-194.el5 Sun Jul 15 20:46 (06:48)
shutdown system down 2.6.18-194.el5 Fri Jul 13 03:59 - 03:35 (2+23:36)
reboot system boot 2.6.18-194.el5 Fri Jul 13 03:32 (00:26)
shutdown system down 2.6.18-194.el5 Fri Jul 13 03:29 - 03:59 (00:29)
reboot system boot 2.6.18-194.el5 Fri Jul 13 00:01 (03:27)
shutdown system down 2.6.18-194.el5 Thu Jul 12 23:59 - 03:29 (03:29)
reboot system boot 2.6.18-194.el5 Thu Jul 12 23:33 (00:26)
shutdown system down 2.6.18-194.el5 Thu Jul 12 23:31 - 23:59 (00:28)
reboot system boot 2.6.18-194.el5 Fri Jul 13 04:35 (-5:-3)thanks very much.