Ubuntu 20.04
Sponsored Link

PowerShell for Linux : Install
2020/09/07
 
Install Microsoft PowerShell for Linux.
Refer to the details about PowerShell for Linux below.
  ⇒ https://github.com/PowerShell/PowerShell
[1] Install PowerShell from Snappy.
root@dlp:~#
snap install powershell --classic

powershell 7.0.3 from Microsoft PowerShell ✓ installed
[2] This is the Bbsic usage of PowerShell.
# run PowerShell

root@dlp:~#
pwsh

PowerShell 7.0.3
Copyright (c) Microsoft Corporation. All rights reserved.

https://aka.ms/powershell
Type 'help' to get help.

PS /root>

# display Cmdlet list (only display 10 lines from the head)
PS /root> (Get-Command)[0..9] 

CommandType     Name                                               Version    Source
-----------     ----                                               -------    ------
Function        cd..
Function        cd\
Function        Clear-Host
Function        Compress-Archive                                   1.2.5      Microsoft.PowerShell.Archive
Function        Configuration                                      2.0.5      PSDesiredStateConfiguration
Function        Expand-Archive                                     1.2.5      Microsoft.PowerShell.Archive
Function        Find-Command                                       2.2.4.1    PowerShellGet
Function        Find-DSCResource                                   2.2.4.1    PowerShellGet
Function        Find-Module                                        2.2.4.1    PowerShellGet
Function        Find-RoleCapability                                2.2.4.1    PowerShellGet

# display current PATH
PS /root> pwd 

Path
----
/root

# change directory to /home
PS /root> cd /home 

# back to home
PS /home> cd 

# display files under the current direcroty (dir equals Get-ChildItem)
PS /root> dir 

    Directory: /root

Mode                 LastWriteTime         Length Name
----                 -------------         ------ ----
-----          12/19/2019 10:54 PM           1376 anaconda-ks.cfg
-----          12/19/2019 10:55 PM           1531 initial-setup-ks.cfg

# display files under / 
PS /root> Get-ChildItem / 

    Directory: /

Mode                 LastWriteTime         Length Name
----                 -------------         ------ ----
l----           5/11/2019  9:33 AM                bin -> /usr/bin
d-r--           7/12/2020 11:04 PM                boot
d----           7/20/2020 11:11 AM                dev
d----           7/20/2020 11:11 AM                etc
.....
.....

# create new file under the current directory
PS /root> New-Item -Path test.txt 

    Directory: /root

Mode                 LastWriteTime         Length Name
----                 -------------         ------ ----
-----           7/19/2020 11:28 PM              0 test.txt

PS /root> dir 

    Directory: /root

Mode                 LastWriteTime         Length Name
----                 -------------         ------ ----
-----          12/19/2019 10:54 PM           1376 anaconda-ks.cfg
-----          12/19/2019 10:55 PM           1531 initial-setup-ks.cfg
-----           7/19/2020 11:28 PM              0 test.txt

# create new directory under the current directory
PS /root> New-Item -ItemType Directory -Path testdir 

    Directory: /root

Mode                 LastWriteTime         Length Name
----                 -------------         ------ ----
d----           7/19/2020 11:29 PM                testdir

PS /root> dir 

    Directory: /root

Mode                 LastWriteTime         Length Name
----                 -------------         ------ ----
d----           7/19/2020 11:29 PM                testdir
-----          12/19/2019 10:54 PM           1376 anaconda-ks.cfg
-----          12/19/2019 10:55 PM           1531 initial-setup-ks.cfg
-----           7/19/2020 11:28 PM              0 test.txt

# [echo] texts and redirect it to a file
PS /root> echo "test content" >> test.txt 

# display content of a file
PS /root> Get-Content test.txt 
test content

# move/rename a file
PS /root> Move-Item test.txt test1.txt 
PS /root> dir 

    Directory: /root

Mode                 LastWriteTime         Length Name
----                 -------------         ------ ----
d----           7/19/2020 11:29 PM                testdir
-----          12/19/2019 10:54 PM           1376 anaconda-ks.cfg
-----          12/19/2019 10:55 PM           1531 initial-setup-ks.cfg
-----           7/19/2020 11:29 PM             13 test1.txt

# copy a file
PS /root> Copy-Item test1.txt test2.txt 
PS /root> dir 

    Directory: /root

Mode                 LastWriteTime         Length Name
----                 -------------         ------ ----
d----           7/19/2020 11:29 PM                testdir
-----          12/19/2019 10:54 PM           1376 anaconda-ks.cfg
-----          12/19/2019 10:55 PM           1531 initial-setup-ks.cfg
-----           7/19/2020 11:29 PM             13 test1.txt
-----           7/19/2020 11:29 PM             13 test2.txt

# copy a directory recursively
PS /root> Copy-Item testdir testdir2 -Recurse 
PS /root> dir 

    Directory: /root

Mode                 LastWriteTime         Length Name
----                 -------------         ------ ----
d----           7/19/2020 11:29 PM                testdir
d----           7/19/2020 11:32 PM                testdir2
-----          12/19/2019 10:54 PM           1376 anaconda-ks.cfg
-----          12/19/2019 10:55 PM           1531 initial-setup-ks.cfg
-----           7/19/2020 11:29 PM             13 test1.txt
-----           7/19/2020 11:29 PM             13 test2.txt

# remove a file
PS /root> Remove-Item test2.txt 
PS /root> dir 

    Directory: /root

Mode                 LastWriteTime         Length Name
----                 -------------         ------ ----
d----           7/19/2020 11:29 PM                testdir
d----           7/19/2020 11:32 PM                testdir2
-----          12/19/2019 10:54 PM           1376 anaconda-ks.cfg
-----          12/19/2019 10:55 PM           1531 initial-setup-ks.cfg
-----           7/19/2020 11:29 PM             13 test1.txt

# remove a directory recursively
PS /root> Remove-Item testdir2 -Recurse 
PS /root> dir 

    Directory: /root

Mode                 LastWriteTime         Length Name
----                 -------------         ------ ----
d----           7/19/2020 11:29 PM                testdir
-----          12/19/2019 10:54 PM           1376 anaconda-ks.cfg
-----          12/19/2019 10:55 PM           1531 initial-setup-ks.cfg
-----           7/19/2020 11:29 PM             13 test1.txt

# search files which includes [.txt] in thier name under the current directory
PS /root> Get-ChildItem "*.txt" -Recurse 

    Directory: /root/testdir

Mode                 LastWriteTime         Length Name
----                 -------------         ------ ----
-----           7/19/2020 11:39 PM             13 test3.txt

    Directory: /root

Mode                 LastWriteTime         Length Name
----                 -------------         ------ ----
-----           7/19/2020 11:29 PM             13 test1.txt

# search a word [test] in a file [test1.txt]
PS /root> Select-String -Pattern "test" test1.txt 

test1.txt:1:test content

# show help about a cmdlet
PS /root> Get-Help Get-Content 

NAME
    Get-Content

SYNOPSIS
    Gets the content of the item at the specified location.


SYNTAX
    Get-Content [-Path] <string[]> [-ReadCount <long>] [-TotalCount <long>] [-Tail <int>] [-Filter <string>] [-Include
    <string[]>] [-Exclude <string[]>] [-Force] [-Credential <pscredential>] [-Delimiter <string>] [-Wait] [-Raw] [-Encoding
    <Encoding>] [-AsByteStream] [<CommonParameters>]
.....
.....

# access to another host with SSH
PS /root> ssh winuser@10.0.0.220 
winuser@10.0.0.220's password:
Microsoft Windows [Version 10.0.17763.1158]
(c) 2018 Microsoft Corporation. All rights reserved.

C:\Users\winuser> dir 
 Volume in drive C has no label.
 Volume Serial Number is D4E4-BE4E

 Directory of C:\Users\winuser

2016/09/28  21:42    <DIR>          .
2016/09/28  21:42    <DIR>          ..
2016/09/28  21:50    <DIR>          .ssh
2020/07/20  11:51    <DIR>          3D Objects
2020/07/20  11:51    <DIR>          Contacts
2020/07/20  11:51    <DIR>          Desktop
2020/07/20  11:51    <DIR>          Documents
2020/07/20  11:51    <DIR>          Downloads
2020/07/20  11:51    <DIR>          Favorites
2020/07/20  11:51    <DIR>          Links
2020/07/20  11:51    <DIR>          Music
2020/07/20  11:51    <DIR>          Pictures
2020/07/20  11:51    <DIR>          Saved Games
2020/07/20  11:51    <DIR>          Searches
2020/07/20  11:51    <DIR>          Videos

               0 File(s)              0 bytes
              15 Dir(s)  172,000,489,472 bytes free
Matched Content