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Forum Discussion

SysTopher's avatar
SysTopher
Icon for Nimbostratus rankNimbostratus
Sep 28, 2016

Removing a character from a variable using TCL

Hello,   iRule newbie here. I'm curious if anyone can give me an idea of how I could take a variable and strip out specific characters. For example, I have an iRule where I'm pulling a variable...
application delivery
BIG-IP Access Policy Manager (APM)
iRules
ekaleido's avatar
ekaleido
Icon for Cirrus rankCirrus
Sep 28, 2016
set variable [ACCESS::session data get "session.custom.variable"]
set newVariable [string trim $variable "@"]

Keep in mind this will remove all @ from $variable, regardless of location in the string.

  • ekaleido's avatar
    ekaleido
    Icon for Cirrus rankCirrus
    Sep 28, 2016

    Or I suppose you could just 

    set variable [string trim [ACCESS::session data get "session.custom.variable"] "@"]
  • SysTopher's avatar
    SysTopher
    Icon for Nimbostratus rankNimbostratus
    Sep 28, 2016

    Ekalieido,

     

    This looks like it would work great, but it turns out the APM option that Kai suggested works better with my existing variable assign so I marked his response as the acceptable answer for my case. Unfortunately I can't mark both of you as correct, but for anyone else reading this looking for a similar solution please keep in mind that both of these answers are great suggestions.

     

  • ekaleido's avatar
    ekaleido
    Icon for Cirrus rankCirrus
    Sep 28, 2016

    No worries! Just glad you were able to get it done.