Mastering Nginx

NGINX for the Developer

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Command Argument Explanation

expr The expression to be evaluated

for truth:

• variable existence
  (expr="$var")


• text comparison
  (expr="$var = text"
  or expr="$var !=
  text")


• regular expression
  match (expr="$var
  = /regexp/" or
  expr="$var != /
  regexp/")
  include Writes the result of a subrequest.
  file The name of a file to include.
  virtual The URI of a subrequest to
  include.
  stub The block to be included instead
  of an empty body, or if there was
  an error in processing.
  wait If there are multiple include
  commands on the same page,
  they will be processed serially
  if this parameter is present.
  set If the subrequest made in
  virtual is to a proxy_pass or
  memcached_pass location,
  the result can be stored in the
  variable named as the argument
  to set.
  set Creates a variable and sets the
  value to it.
  var The name of the variable to be
  set.
  value The value of the variable to set.