How do I negate a condition in PowerShell

Question

How do I negate a conditional test in PowerShell   For example  if I want to check for the directory C  Code  I can run   if  Test-Path C  Code     write  it exists       Is there a way to negate that condition  e g   non-working    if  Not  Test-Path C  Code      write  it doesn t exist         Workaround   if  Test-Path C  Code     else     write  it doesn t exist      This works fine  but I d prefer something inline

User · Answer

if you don t like the double brackets or you don t want to write a function  you can just use a variable    path   Test-Path C  Code if    path        write  it doesn t exist

User · Answer

If you are like me and dislike the double parenthesis  you can use a function  function not   cm   pm      if   amp   cm  pm   0  else  1     if  not Test-Path C  Code    it does not exist      Example

User · Answer

Powershell also accept the C C   C  not operator     if     Test-Path C  Code     write  it doesn t exist       I use it often because I m used to C     allows code compression simplification    I also find it more elegant

User · Answer

You almost had it with Not  It should be   if  -Not  Test-Path C  Code         write  it doesn t exist        You can also use    if    Test-Path C  Code      Just for fun  you could also use bitwise exclusive or  though it s not the most readable understandable method   if   test-path C  code  -bxor 1   write  it doesn t exist

[windows] How do I negate a condition in PowerShell?

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