Scan log for changes and process (events)

[supersam]

So I would like to get my eggdrop to parse a file continually. And if a string/regexp matches then follow up with some action.

The follow up is easy - just not sure how to scan.

Thanks in advance.

[Luminous]

Hi there. Sounds like you are wanting to either output the whole file line by line, or else create a list containing each line. To do the first, you can do do something like this:

Code: Select all

set fs [open "file.ext"]
 while {[gets $fs line] >= 0} {
    <actions here>
 }
 close $fs

If you want to create a list of file line elements:

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 set fs [open "file.ext"]
 set lines [split [read -nonewline $fs] \n]
   close $fs

Be sure to close the file when you are done with it. Leaving one open and opening it again makes for a badly behaved eggie, hehe.

[supersam]

Thank for the reply. I was looking more for a tail -f script. In the end I went from a cron job.

[Luminous]

Oh, okay, my bad... you could do something with the exec command also. You can put the command in as you would normally, just use exec before.

[greenbear]

Code: Select all

set fs [open "|tail -f file.log"]
fconfigure $fs -blocking 0 -buffering line
fileevent $fs readable [list output $fs]
proc output {fs} {putserv "privmsg #chan :[gets $fs]"}