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How do I concatenate two text files in PowerShell?
...joinedFile.txt
Note 1: PowerShell 5 and older versions allowed this to be done more concisely using the aliases cat and sc for Get-Content and Set-Content respectively, but these aliases are deprecated and even removed in new versions, so it's best to avoid them.
Note 2: Be careful with wildcards -...
Check if a key exists inside a json object
... !== undefined) and if(thisSession.hasOwnProperty('merchant_id')) or is it doing the same thing behind the scenes?
– zero298
Dec 27 '13 at 16:47
2
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I want to delete all bin and obj folders to force all projects to rebuild everything
...ends on the shell you prefer to use.
If you are using the cmd shell on Windows then the following should work:
FOR /F "tokens=*" %%G IN ('DIR /B /AD /S bin') DO RMDIR /S /Q "%%G"
FOR /F "tokens=*" %%G IN ('DIR /B /AD /S obj') DO RMDIR /S /Q "%%G"
If you are using a bash or zsh type shell (such a...
Can I see changes before I save my file in Vim?
...n directory, open a file, make some modifications without saving them, and do :DiffSaved.
function! s:DiffWithSaved()
let filetype=&ft
diffthis
vnew | r # | normal! 1Gdd
diffthis
exe "setlocal bt=nofile bh=wipe nobl noswf ro ft=" . filetype
endfunction
com! DiffSaved call s:DiffWithSa...
Delete all local changesets and revert to tree
...settings.
PS: an even smarter approach is to use the revset language, and do:
% hg strip 'roots(outgoing())'
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Running script upon login mac [closed]
...ript (from the Actions/Utilities)
copy & paste your script into the window
test it
save somewhere (for example you can make an Applications folder in your HOME, you will get an your_name.app)
go to System Preferences -> Accounts -> Login items
add this app
test & done ;)
EDIT:
I've...
How to set NODE_ENV to production/development in OS X
...
Before running your app, you can do this in console,
export NODE_ENV=production
Or if you are in windows you could try this:
SET NODE_ENV=production
for PowerShell:
$env:NODE_ENV="production"
or you can run your app like this:
NODE_ENV=production node app...
PHP mkdir: Permission denied problem
...arning: mkdir() [function.mkdir]: Permission denied in ... . How to settle down the problem?
13 Answers
...
Delete last char of string
...o remove last char. For OP's question, the problem should not exist if you dont create a trailing char. Check @Øyvind Bråthen solution if you are in OP's boat.
– aloisdg moving to codidact.com
Jun 6 '18 at 9:48
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How do I use grep to search the current directory for all files having the a string “hello” yet disp
How do I use grep to search the current directory for any and all files containing the string "hello" and display only .h and .cc files?
...