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Is errno thread-safe?
...e difference with and without -pthread. errno is #define errno (*__errno_location ()) in both cases.
– nos
Nov 28 '11 at 15:47
...
Execute a command line binary with Node.js
... use child_process.exec:
const { exec } = require('child_process');
exec('cat *.js bad_file | wc -l', (err, stdout, stderr) => {
if (err) {
// node couldn't execute the command
return;
}
// the *entire* stdout and stderr (buffered)
console.log(`stdout: ${stdout}`);
console.log...
Android - Pulling SQlite database android device
...ze());
src.close();
dst.close();
}
}
} catch (Exception e) {
}
Don't forget to set the permission to write on SD in your manifest, like below.
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
...
Vagrant ssh authentication failure
The problem with ssh authentication:
29 Answers
29
...
Ruby: Merging variables in to a string
...the argument number and shuffle them around:
'The %3$s %2$s the %1$s' % ['cat', 'eats', 'mouse']
Or specify the argument using hash keys:
'The %{animal} %{action} the %{second_animal}' %
{ :animal => 'cat', :action=> 'eats', :second_animal => 'mouse'}
Note that you must provide a va...
Unique constraint on multiple columns
...1) NOT NULL,
[ID] [int] NOT NULL,
[name] [nvarchar](50) NULL,
[cat] [nvarchar](50) NULL,
CONSTRAINT [PK_Table_1] PRIMARY KEY CLUSTERED
(
[ID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY],
...
Can someone explain __all__ in Python?
...blic API using the __all__ attribute. Setting __all__ to an empty list indicates that the module has no public API.
– debug
Apr 10 '18 at 15:20
...
Branch descriptions in Git
...s in ~/.gitconfig, under [alias]
cor = !sh -c 'git checkout $1 && cat README' -
After this, you can run git cor <branch_name> to switch branch and display the README of the branch you're switching to.
share
...
How to pass the password to su/sudo/ssh without overriding the TTY?
... showing up in process list or log files by putting it in a file and using cat; 'cat pw | sudo -S <command>, and later rm pw.
– CAB
Mar 24 '16 at 16:43
...
Can I use git diff on untracked files?
...(or --intent-to-add), which adds a zero-length blob to the index at that location. The upshot is that your "untracked" file now becomes a modification to add all the content to this zero-length file, and that shows up in the "git diff" output.
git diff
echo "this is a new file" > new.txt
git di...