extracting numbers from strings

mpapec · May 24, 2007, 12:24pm

I get

-54dBm@48Mbps
-68dBm@6Mbps
-72dBm@6Mbps
-76dBm@6Mbps
-88dBm@6Mbps
-69dBm@18Mbps
-63dBm@48Mbps
-69dBm@6Mbps

from script

interface wireless registration-table {:foreach i in=[f] do={:set sig [g $i sig]; :put  $sig }}

and I want only numbers (-54,-68,..) instead of strings so I can compare them later.

Tnx for any advice.

mrz · May 25, 2007, 8:42am

easy!

:local numSig :tonum [:pick $sig 0 3]

jestednet · May 25, 2007, 10:16am

And :tonum export or print to a file in Mikrotik FTP?

mrz · May 25, 2007, 11:46am

# create test.txt file
/file print file=test ;
# write content to file
/file set [/file find name=test.txt ] contents="any content you want" ;

#to check that content was written to file
:put [/file get [/file find name=test.txt ] contents ] ;

jestednet · May 25, 2007, 1:55pm

/file not set

mrz · May 25, 2007, 2:32pm

looks like /file set is available only in v3 beta

jestednet · May 25, 2007, 2:53pm

dada · June 7, 2007, 1:53pm

do you really need to have the content in a file? Maybe the global variable is enough ? You can access it from other scripts but you cannot access it by FTP..

If you need to report some values to another device (central logger) you can configure log system to send some events to remote Ssyslog sever and ‘export’ the values from script thtough the log system (:log info “blabbla”)