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Remove the last line from a file in Bash
I have a file, foo.txt , containing the following lines:
14 Answers
14
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node and Error: EMFILE, too many open files
...2,3,4,5,6,7,8,9,10]
for (var file in files) {
q.push({filename:file+".txt"}, function (err,filename,res) {
console.log(filename + " read");
});
}
You can see that each file is added to the queue (console.log filename), but only when the current queue is under the limit you set pre...
Stop pip from failing on single package when installing with requirements.txt
I am installing packages from requirements.txt
6 Answers
6
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PowerShell equivalent to grep -f
...an array of patterns. So the one you're looking for is:
Get-Content .\doc.txt | Select-String -Pattern (Get-Content .\regex.txt)
This searches through the textfile doc.txt by using every regex(one per line) in regex.txt
s...
Recursively add files by pattern
...urrent directory.
From git add documentation:
Adds content from all *.txt files under Documentation directory and its subdirectories:
$ git add Documentation/\*.txt
Note that the asterisk * is quoted from the shell in this example; this lets the command include the files from subdirector...
Write to file, but overwrite it if it exists
...ty and overwrite the file.
echo "text" > 'Users/Name/Desktop/TheAccount.txt'
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How to add new line into txt file
I'd like to add new line with text to my date.txt file, but instead of adding it into existing date.txt, app is creating new date.txt file..
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Unix - create path of folders and file
...dir -p /my/other/path/here/ && touch /my/other/path/here/cpedthing.txt
Note: Previously I recommended usage of ; to separate the two commands but as pointed out by @trysis it's probably better to use && in most situations because in case COMMAND1 fails COMMAND2 won't be executed ei...
Redirecting Output from within Batch file
...file pointer to End-Of-File multiple times.
@echo off
command1 >output.txt
command2 >>output.txt
...
commandN >>output.txt
A better way - easier to write, and faster because the file is opened and positioned only once.
@echo off
>output.txt (
command1
command2
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comma...
What is the easiest way to remove all packages installed by pip?
...and Linux systems.
To get the list of all pip packages in the requirements.txt file (Note: This will overwrite requirements.txt if exist else will create the new one, also if you don't want to replace old requirements.txt then give different file name in the all following command in place requiremen...