Unfortunately, we do not have an equivalent of "cd -" in Powershell. So I just wrote a simple powershell cd function for this cool feature
Powershell CD function:
1 | function cd { |
2 | |
3 | if ($args[0] -eq '-') { |
4 | $pwd=$OLDPWD; |
5 | } else { |
6 | $pwd=$args[0]; |
7 | } |
8 | |
9 | $tmp=pwd; |
10 | |
11 | if ($pwd) { |
12 | Set-Location $pwd; |
13 | } |
14 | |
15 | Set-Variable -Name OLDPWD -Value $tmp -Scope global; |
16 | } |
Now lets see, how to install the above function in your powershell
Step 1: Remove Alias for cd
cd is actually not a powershell cmdlet. It is an *alias* to Set-Location cmdlet. To install our new cd function, first we need to remove this alias
PS C:\Scripts> Get-Command cd
CommandType Name Definition
----------- ---- ----------
Alias cd Set-Location
PS C:\Scripts> Remove-Item Alias:cd
PS C:\Scripts>
Step 2: Install Powershell cd function
We have removed the alias for cd. Now we can just go ahead and install our new powershell cd function which is very easy. Just paste the complete function in one line.
Powershell CD function in one line:
function cd { if ($args[0] -eq '-') { $pwd=$OLDPWD; } else { $pwd=$args[0]; } $tmp=pwd; if ($pwd) { Set-Location $pwd; } Set-Variable -Name OLDPWD -Value $tmp -Scope global; }
PS C:\Scripts> function cd { if ($args[0] -eq '-') { $pwd=$OLDPWD; } else { $pwd=$args[0]; } $tmp=pwd; if ($pwd) { Set-Location $pwd; } Set-Variable -Name OLDPWD -Value $tmp -Scope global; }
PS C:\Scripts>
PS C:\Scripts> Get-Item function:cd
CommandType Name Definition
----------- ---- ----------
Function cd if ($args[0] -eq '-') { $pwd=$OLDPWD; } else { ...
Ready to go, Lets see this cool feature in action
PS C:\Scripts> cd C:\Users\Jagadish\Desktop
PS C:\Users\Jagadish\Desktop> cd -
PS C:\Scripts> cd -
PS C:\Users\Jagadish\Desktop> cd ..\Documents
PS C:\Users\Jagadish\Documents> cd C:\Scripts
PS C:\Scripts> dir
Directory: C:\Scripts
Mode LastWriteTime Length Name
---- ------------- ------ ----
-a--- 6/6/2009 12:14 PM 279 test.ps1
-a--- 6/20/2009 8:27 PM 69 test1.ps1
PS C:\Scripts> cd -
PS C:\Users\Jagadish\Documents>
Hope you like it :)
Note: Powershell will not save any functions/aliases by default. So if you close your powershell and reopen it, this function will not be available. To make it permanent, it should be added in the Windows Powershell Profile file
Great, except - how does one keep the cd alias deleted? When I delete it, the function works fine, but after closing the prompt instance, the alias is always back. How did you solve this? I suppose I could add the remove-item command to the profile, but that seems a little strange.
ReplyDeleteTry naming the function something other than 'cd', like 'cddash' for example. Then include the function in your powershell profile and add the following line:
Deleteset-alias -Name cd -value cddash -Option AllScope
Well, yeah you are right. If you close and reopen the powershell, the alias is always back.
ReplyDeleteUnfortunately, We don't have any other option except adding Remove-Item cmdlet to the profile file :(
Good job, simple and elegant.
ReplyDeleteThanks.
Nice job. Very handy.
ReplyDeleteGreat job ! It is very simple and easy. Cd- is very simple command for changing previous working directory..
ReplyDeleteWorks great! Thanks!
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As a newbie who comes from UNIX to powershell I really love these kinds of clear, clean tips. This is great, Thanks !!
ReplyDeleteOne other way I found to save the function is to use the following
1. Save function in a file. I called mine function_cd_previous.ps1
2. Then run this on the commandline
. ''
Note the SPACE between the and the
e.g. . 'c:\powershell\function_cd_previous.ps1'
There may be issues doing it this way. I'm not sure. Just trying to add to the collective :)
This is my version using pushd/popd:
ReplyDeletefunction cd-previous
{
if ($args[0] -eq '-')
{
popd
}
else
{
pushd $args[0]
}
}
I feel you look for something like Pop-Location (https://technet.microsoft.com/library/hh849842.aspx) and Push-Location (https://technet.microsoft.com/library/hh849855.aspx)
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How to delete all telephone numbers having prefix 913- in a txt file
ReplyDeleteFor example in my text1.txt file the content has the following
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med 3 913-33346
dpt 7d ......913-12347
mod 8r 913-44448
How to delete all telephone numbers in a large file having prefix 913- in a text file
For example in my text file the content has the following
xylem 1 ...... 913-12346 med 3 913-33346
dpt 7d ......913-12347 mod 8r 913-44448
....
and so on
i want to delete only the 913-44448,913-12347,913-33346 ,913-12346
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ReplyDeleteพาร์เลย์
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Just paste the complete function in one line.
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