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Is there a bash command which counts files?
... contain whitespace or special characters such as newlines.
The output is piped to wc -l, which counts the number of lines.
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How to make a node.js application run permanently?
...ode server writes to console.log or console.error it will receive a broken pipe error and crash. This can be avoided by piping the output of your process:
node /srv/www/MyUserAccount/server/server.js > stdout.txt 2> stderr.txt &
If the problem persists then you should look into things ...
Delete all local git branches
...output, this will lead to error: branch 'foo' not found. if you attempt to pipe it into another command. You can bypass this with the --no-color flag to git branch, but who knows what other user configurations might break things.
git branch may do other things that are annoying to parse, like
put a...
Showing the stack trace from a running Python application
... the same thing, except it communicates with the running process through a pipe (to allow for debugging backgrounded processes etc). Its a bit large to post here, but I've added it as a python cookbook recipe.
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How to add a progress bar to a shell script?
...will respond similarly to SIGUSR1. If this facility is available, you can pipe your input through dd to monitor the number of bytes processed.
Alternatively, you can use lsof to obtain the offset of the file's read pointer, and thereby calculate the progress. I've written a command, named pmonito...
How to skip “are you sure Y/N” when deleting files in batch files
...early identical post provides the very useful alternative of using an echo pipe if no force or quiet switch is available. For instance, I think it's the only way to bypass the Y/N prompt in this example.
Echo y|NETDOM COMPUTERNAME WorkComp /Add:Work-Comp
In a general sense you should first look a...
Determine if a function exists in bash
..., but when testing if something is a function, it's slow since you have to pipe to grep or use backticks, both of which spawn a subprocess.
– Lloeki
Dec 19 '13 at 8:46
1
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Test if executable exists in Python?
...turn subprocess.call("type " + cmd, shell=True,
stdout=subprocess.PIPE, stderr=subprocess.PIPE) == 0
What we're doing here is using the builtin command type and checking the exit code. If there's no such command, type will exit with 1 (or a non-zero status code anyway).
The bit about std...
Git resolve conflict using --ours/--theirs for all files
...o each matched file is only output once.
The matched file names are then piped to xargs, a utility that breaks up the piped input stream into individual arguments for git checkout --ours or --theirs
More at this link.
Since it would be very inconvenient to have to type this every time at the co...
How can one use multi threading in PHP applications
...i++) {
// open ten processes
for ($j=0; $j<10; $j++) {
$pipe[$j] = popen('script2.php', 'w');
}
// wait for them to finish
for ($j=0; $j<10; ++$j) {
pclose($pipe[$j]);
}
}
shar...