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How can I quickly sum all numbers in a file?
...MO=Deparse -nle '$sum += $_ } END { print $sum'
The result is a more verbose version of the program, in a form that no one would ever write on their own:
BEGIN { $/ = "\n"; $\ = "\n"; }
LINE: while (defined($_ = <ARGV>)) {
chomp $_;
$sum += $_;
}
sub END {
print $sum;
}
-e synta...
Android: Storing username and password?
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Most Android and iPhone apps I have seen use an initial screen or dialog box to ask for credentials. I think it is cumbersome for the user to have to re-enter their name/password often, so storing that info makes sense from a...
Git on Bitbucket: Always asked for password, even after uploading my public SSH key
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You are right, thanks! I had most probably clone with the wrong URL. I replaced the URL in .git/config with git@bitbucket.org:Nicolas_Raoul/therepo.git and now it works!
– Nicolas Raoul
Dec 22 '11 at 7:55
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DistutilsOptionError: must supply either home or prefix/exec-prefix — not both
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Are you using OS X and Homebrew? The Homebrew python page https://github.com/Homebrew/brew/blob/master/docs/Homebrew-and-Python.md calls out a known issue with pip and a work around.
Worked for me.
You can make this "empty prefix" th...
How to split a delimited string into an array in awk?
...interepreted literally and "\|" seen as regex separator, instead of the opposite... ymmv
– Olivier Dulac
Dec 5 '19 at 9:16
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Rolling back local and remote git repository by 1 commit
I've read the similar posts on this topic, and can't for the life of me figure out how to do this properly.
14 Answers
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Crash logs generated by iPhone Simulator?
...o file.
I have found some in my home directory under
~/Library/Logs/DiagnosticReports/
They have a file extension of .crash
Something I haven't yet figured out is how to get them to generate even if the debugger grabs the EXC_BAD_ACCESS signal.
Update
Currently, (OSX 10.11.6), the .crash lo...
Auto start node.js server on boot
Can any node.js experts tell me how I might configure node JS to autostart a server when my machine boots?
I'm on Windows
...
WARNING: UNPROTECTED PRIVATE KEY FILE! when trying to SSH into Amazon EC2 Instance
... get into my personal instance last night,
And this is the way it is supposed to be.
From the EC2 documentation we have "If you're using OpenSSH (or any reasonably paranoid SSH client) then you'll probably need to set the permissions of this file so that it's only readable by you." The Panda d...
How do I debug Node.js applications?
...nce version 6.3, Node.js provides a buit-in DevTools-based debugger which mostly deprecates Node Inspector, see e.g. this blog post to get started. The built-in debugger is developed directly by the V8/Chromium team and provides certain advanced features (e.g. long/async stack traces) that are too d...