Shell Programming and Scripting

Can you please explain me this FS and RS please

yeah thats right..Itz giving me wrong process id's

crypto $ awk '/idle/{sub(/s.*/,"",$2);sub(/<\/td>.*/,"",$3); proc=$3;if(($3~/^&/)||(($2+0)>20000))print "Idle is:",$2, "Process is:"
, proc , "PID is:", $4}' \FS="idle |s</td><td>|/logs/imanscript" RS=".syslog" proc.txt
Idle is: 4639 Process is: &nbsp; PID is: 3568
Idle is: 20419 Process is: X045672&nbsp; PID is: 16225
Idle is: 25666 Process is: X035466&nbsp; PID is: 561
Idle is: 30690 Process is: 103818&nbsp; PID is: 16278
Idle is: 24137 Process is: X039371&nbsp; PID is: 15120
Idle is: 32917 Process is: 22320&nbsp; PID is: 25488

actually 3568 is a owned process.. here is the column for your reference.

</pre>
<hr>
<H2>Processes</H2><table align=center width=100% border=1><tr><th>No.</th><th>State</th><th>Query</th><th>Times</th><th>User</th><th
>Processed</th><th>Syslog</th></tr><tr><td>1</td><td>ready</td><td>&nbsp;</td><td>idle 4639s</td><td>&nbsp;</td><td>0</td><td>/Appli
cation/ugsvols/bldata01/logs/imanscript3568.syslog</td></tr><tr><td>2</td><td>ready</td><td>&nbsp;</td><td>idle 4628s</td><td>X04018
7&nbsp;</td><td>3</td><td>/Application/ugsvols/bldata01/logs/imanscript896.syslog</td></tr><tr><td>3</td><td>ready</td><td>&nbsp;</t
d><td>idle 4276s</td><td>X041587&nbsp;</td><td>33</td><td>/Application/ugsvols/bldata01/logs/imanscript29204.syslog</td></tr><tr><td
>4</td><td>ready</td><td>&nbsp;</td><td>idle 10535s</td><td>106641&nbsp;</td><td>7</td><td>/Application/ugsvols/bldata01/logs/imansc
ript9994.syslog</td></tr><tr><td>5</td><td>ready</td><td>&nbsp;</td><td>idle 8982s</td><td>X039706&nbsp;</td><td>194</td><td>/Applic
ation/ugsvols/bldata01/logs/imanscript7599.syslog</td></tr><tr><td>6</td><td>ready</td><td>&nbsp;</td><td>idle 13046s</td><td>X03609
1&nbsp;</td><td>24</td><td>/Application/ugsvols/bldata01/logs/imanscript1963.syslog</td></tr><tr><td>7</td><td>ready</td><td>&nbsp;<
/td><td>idle 20419s</td><td>X045672&nbsp;</td><td>7</td><td>/Application/ugsvols/bldata01/logs/imanscript16225.syslog</td></tr><tr><
td>8</td><td>ready</td><td>&nbsp;</td><td>idle 630s</td><td>X035077&nbsp;</td><td>9</td><td>/Application/ugsvols/bldata01/logs/imans
cript10210.syslog</td></tr><tr><td>9</td><td>ready</td><td>&nbsp;</td><td>idle 25666s</td><td>X035466&nbsp;</td><td>5</td><td>/Appli
cation/ugsvols/bldata01/logs/imanscript561.syslog</td></tr><tr><td>10</td><td>ready</td><td>&nbsp;</td><td>idle 30690s</td><td>10381
8&nbsp;</td><td>5</td><td>/Application/ugsvols/bldata01/logs/imanscript16278.syslog</td></tr><tr><td>11</td><td>ready</td><td>&nbsp;
</td><td>idle 24137s</td><td>X039371&nbsp;</td><td>15</td><td>/Application/ugsvols/bldata01/logs/imanscript15120.syslog</td></tr><tr
><td>12</td><td>ready</td><td>&nbsp;</td><td>idle 32917s</td><td>22320&nbsp;</td><td>4</td><td>/Application/ugsvols/bldata01/logs/im
anscript25488.syslog</td></tr></table>
<hr>
<H2>Queries</H2><p>No queries.</p>

FS is input field separator, RS is input record separator.
Read the man pages for awk.

Thank You Buddy. It works great.

radoulov

One final question. Could you please explain me this.I really couldn't understand much.

awk '/idle/{sub(/s.*/,"",$2);sub(/<\/td>.*/,"",$3); proc=$3;if(($3~/^&/)||(($2+0)>20000))

Thanks.

I'll try (feel free to correct my english) ...

Code:

awk '
# For every record matching the pattern "idle":
# + in the second field ($2) remove (replace with "") everything
# + after and including the regex "s.*" (letter "s" followed by 
# + any number of any character), in the 3rd field ($3), 
# + remove (replace with "") everything after and including 
# + the regex "<\/td>.*" (</td>, forward slash needs to be escaped,
# + followed by any number of any character); then assign the _modified_
# + value of $3 to the variable proc.
# If the value of the variable proc matches the regex "^&" (& character 
# + at the beginig) _OR_ the value of the second filed (for some awk
# + implementations you need some sort of explicit casting/conversion,  
# + in this case to number with a "fake" addition ($2+0)) is greater than
# + 20000, perform some actions ....
/idle/{sub(/s.*/,"",$2);sub(/<\/td>.*/,"",$3); proc=$3;if(($3~/^&/)||(($2+0)>20000))
....

Thanks rudolv.