iRule content show up in one line

After a few attempts I finally understood your dilemma. When reading from a file you get a System.Object array.

Converting this to a string removes the line breaks.

Try this:

$def = (Get-Content iRuleContent.txt) -join "`n"

$RuleDefinition = New-Object -TypeName iControl.LocalLBRuleRuleDefinition $RuleDefinition.rule_name = "iRulewithlines" $RuleDefinition.rule_definition = $def $f5.LocalLBRule.create($RuleDefinition )