5 files changed, 7 insertions, 7 deletions
diff --git a/Library/Formula/auctex.rb b/Library/Formula/auctex.rb
index 6e51fed7f..411facf54 100644
--- a/Library/Formula/auctex.rb
+++ b/Library/Formula/auctex.rb
@@ -19,7 +19,7 @@ class Auctex < Formula
         return a.sub('--with-emacs=', '')
       end
     end
-    return `which emacs`.chomp
+    return which 'emacs'
   end
 
   def install
diff --git a/Library/Formula/pgplot.rb b/Library/Formula/pgplot.rb
index 4462f844c..41419f148 100644
--- a/Library/Formula/pgplot.rb
+++ b/Library/Formula/pgplot.rb
@@ -34,7 +34,7 @@ class Pgplot < Formula
     # re-hardcode the share dir
     inreplace 'src/grgfil.f', '/usr/local/pgplot', share
     # perl may not be in /usr/local
-    inreplace 'makehtml', '/usr/local/bin/perl', `which perl`.chomp
+    inreplace 'makehtml', '/usr/local/bin/perl', which('perl')
     # prevent a "dereferencing pointer to incomplete type" in libpng
     inreplace 'drivers/pndriv.c', 'setjmp(png_ptr->jmpbuf)', 'setjmp(png_jmpbuf(png_ptr))'
 
@@ -58,7 +58,7 @@ LIBS="#{ENV.ldflags} -lX11"
 MOTIF_LIBS=""
 ATHENA_LIBS=""
 TK_LIBS=""
-RANLIB="#{`which ranlib`.chomp}"
+RANLIB="#{which 'ranlib'}"
 SHARED_LIB="libpgplot.dylib"
 SHARED_LD="#{ENV['FC']} -dynamiclib -single_module $LDFLAGS -lX11 -install_name libpgplot.dylib"
 SHARED_LIB_LIBS="#{ENV.ldflags} -lpng -lX11"
diff --git a/Library/Homebrew/extend/ENV.rb b/Library/Homebrew/extend/ENV.rb
index 186628f5b..0f93a5d6f 100644
--- a/Library/Homebrew/extend/ENV.rb
+++ b/Library/Homebrew/extend/ENV.rb
@@ -479,10 +479,10 @@ class << ENV
         EOS
       end
 
-    elsif `/usr/bin/which gfortran`.chuzzle
+    elsif which 'gfortran'
       ohai "Using Homebrew-provided fortran compiler."
       puts "This may be changed by setting the FC environment variable."
-      self['FC'] = `/usr/bin/which gfortran`.chomp
+      self['FC'] = which 'gfortran'
       self['F77'] = self['FC']
 
       fc_flag_vars.each {|key| self[key] = cflags}
diff --git a/Library/Homebrew/global.rb b/Library/Homebrew/global.rb
index 761dd1eb7..2ae186c82 100644
--- a/Library/Homebrew/global.rb
+++ b/Library/Homebrew/global.rb
@@ -46,7 +46,7 @@ undef cache # we use a function to prevent adding home_cache to the global scope
 HOMEBREW_CACHE_FORMULA = HOMEBREW_CACHE+"Formula"
 
 if not defined? HOMEBREW_BREW_FILE
-  HOMEBREW_BREW_FILE = ENV['HOMEBREW_BREW_FILE'] || `which brew`.chomp
+  HOMEBREW_BREW_FILE = ENV['HOMEBREW_BREW_FILE'] || which('brew').to_s
 end
 
 HOMEBREW_PREFIX = Pathname.new(HOMEBREW_BREW_FILE).dirname.parent # Where we link under
diff --git a/Library/brew.rb b/Library/brew.rb
index b6ebf9145..f60d3d426 100755
--- a/Library/brew.rb
+++ b/Library/brew.rb
@@ -91,7 +91,7 @@ begin
       ENV["HOMEBREW_#{e}"] = Object.const_get "HOMEBREW_#{e}"
     end
     exec "brew-#{cmd}", *ARGV
-  elsif require? `/usr/bin/which brew-#{cmd}.rb`
+  elsif require? which("brew-#{cmd}.rb").to_s
     exit 0
   else
     onoe "Unknown command: #{cmd}"