List all files with a particular extension using PowerShell

One liner command to list files with a specific extension in a given path.

Command below will list all the file that will match and display it's file name, file size and the directory where the file is located or found.

The output of PowerShell is redirected to a text file.


$FileExtension=".key"

$FilesDir = get-childitem "d:\CertKeys" -recurse | where {$_.extension -eq $FileExtension } | format-table name,length,Directory -AutoSize

$FilesDir | out-file "d:\certkey.txt"


Or save some few bytes by using the shorter form of the cmdlets.

$FileExtension=".key"

$FilesDir = gci "d:\CertKeys" -recurse | ? {$_.extension -eq $FileExtension } | ft name,length,Directory -AutoSize

$FilesDir | out-file "d:\certkey.txt"


Sample Output:
Name                          length         Directory 
----                              ------          --------- 
ssl.key
ca.key                        963    D:\CertKeys\apache\ssl.key 
server.key                  963    D:\CertKeys\others\ssl.key 
snakeoil-ca-dsa.key   672    D:\CertKeys\others\LinuxSrv  -others\apache\ssl.key
snakeoil-ca-rsa.key    887    D:\CertKeys\others\LinuxSrv  -others\apache\ssl.key
snakeoil-dsa.key        668    D:\CertKeys\others\LinuxSrv ubuntu\apache\ssl.key
snakeoil-rsa.key         887    D:\CertKeys\others\LinuxSrv ubuntu\ssl.key
snakeoil-ca-dsa.key   672    D:\CertKeys\others\apache\mod_ssl
snakeoil-ca-rsa.key    887    D:\CertKeys\others\LinuxSrv ubuntu iptables\mod_ssl
snakeoil-dsa.key        668    D:\CertKeys\others\LinuxSrv\usr-share-apache\apache\mod_ssl
snakeoil-rsa.key         887    D:\CertKeys\others\LinuxSrv  -others\usr-share-apache\apache\mod_ssl



Cheers..hope it helps..