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What is an uninterruptible process?
...he kernel needs to do something which could take a long time (waiting on a pipe written by another process or waiting for the hardware to do something, for instance), it sleeps by marking itself as sleeping and calling the scheduler to switch to another process (if there is no non-sleeping process, ...
What is the bower (and npm) version syntax?
...if I have edited it fairly). Yes, you can do that, using the common double-pipe "or" operator: ||. Like so:
"angular": "1.2 <= 1.2.9 || >2.0.0"
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How Drupal works? [closed]
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Drupal's index.php file functions as a frontside controller. All page are piped through it, and the "actual" url/path the user requested is passed to index.php as a parameter.
Drupal's path router system (MenuAPI) is used to match the requested path to a given plugin module. That plugin module is r...
What are the differences between Perl, Python, AWK and sed? [closed]
... after answering).
Sed is the best tool for extremely simple command-line pipelines. In the hands of a sed master, it's suitable for one-offs of arbitrary complexity, but it should not be used in production code except in very simple substitution pipelines. Stuff like 's/this/that/.'
Gawk (the G...
What's the equivalent of use-commit-times for git?
...it whatchanged --pretty=%at'),
stdout=subprocess.PIPE)
for line in gitobj.stdout:
line = line.strip()
if not line: continue
if line.startswith(':'):
file = line.split('\t')[-1]
if file in filelist:
filelist.remove(file)
#...
How can you use an object's property in a double-quoted string?
...htable).
To get the same output as in the console, use a subexpression and pipe to Out-String and apply .Trim() to remove any leading and trailing empty lines, if desired; e.g.,
"hashtable:`n$((@{ key = 'value' } | Out-String).Trim())" yields:
hashtable: ...
How do I daemonize an arbitrary script in unix?
I'd like a daemonizer that can turn an arbitrary, generic script or command into a daemon .
12 Answers
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RESTful Alternatives to DELETE Request Body
...s a sure-fire way to randomly lose data as your bits traverse the internet pipes, and you'll have a very difficult time debugging it.
– Nicholas Shanks
Sep 10 '14 at 9:25
3
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Creating a daemon in Linux
...ed that initialization is complete. This can be implemented via an unnamed pipe or similar communication channel that is created before the first fork() and hence available in both the original and the daemon process.
Call exit() in the original process. The process that invoked the daemon must be...
How to detect if a script is being sourced
...amp;& sourced=1 || sourced=0
POSIX-compliant; not a one-liner (single pipeline) for technical reasons and not fully robust (see bottom):
sourced=0
if [ -n "$ZSH_EVAL_CONTEXT" ]; then
case $ZSH_EVAL_CONTEXT in *:file) sourced=1;; esac
elif [ -n "$KSH_VERSION" ]; then
[ "$(cd $(dirname -- ...