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Minimal web server using netcat
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From man for nc, -p description: It is an error to use this option in conjunction with the -l option
– sbeliakov
Nov 24 '16 at 14:59
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What is Clojure useful for? [closed]
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I've used Clojure for:
Scraping web pages
Shell scripts
Building websites
Playing around with OpenGL
Writing async webservers
HTML Templating
Running parallel tasks (fetching multiple URLs and process in parallel)
Playing around with real time audio
Simulations
That's th...
How do I auto-submit an upload form when a file is selected?
... works like this:
onchange makes the input element execute the following script, whenever the value is modified
form references the form, that this input element is part of
submit() causes the form to send all data to the URL, as specified in action
Advantages of this solution:
Works without i...
Writing a git post-receive hook to deal with a specific branch
...ommit, or really and hook. This is a pre-commit hook that will run a husky script if we're NOT on the master branch.
#!/bin/bash
# git 'commit' does not have access to these variables: oldrev newrev refname
# So get the branch name off the head
branchPath=$(git symbolic-ref -q HEAD) # Something li...
External template in Underscore
...gt;something code</h3> \
";
Then, it is as simple as including the script file like a normal one and then using it in your view:
template: _.template(app.templates.view)
Taking it a step further, I actually use coffeescript, so my code actually looks more like this and avoid the end-of-li...
HTML select form with option to enter custom value
...t toggle for me on Firefox, so I thought I would provide a simple html/javascript workaround that will function nicely within forms (regarding submission) until the day that the datalist tag is accepted by all browsers/devices. For more details and see it in action, go to: http://jsfiddle.net/6nq7w...
How do I implement basic “Long Polling”?
...chance of returning an error 404 (to show error handling in the coming Javascript example)
msgsrv.php
<?php
if(rand(1,3) == 1){
/* Fake an error */
header("HTTP/1.0 404 Not Found");
die();
}
/* Send a string after a random number of seconds (2-10) */
sleep(rand(2,10));
echo("Hi! Ha...
How to write a bash script that takes optional input arguments?
I want my script to be able to take an optional input,
8 Answers
8
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How can I add numbers in a Bash script?
I have this Bash script and I had a problem in line 16.
How can I take the previous result of line 15 and add
it to the variable in line 16?
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How to tell if a string is not defined in a Bash shell script
...se it echoes nothing) "VAR is set but its value might be empty". Try this script:
(
unset VAR
if [ -z "${VAR+xxx}" ]; then echo JL:1 VAR is not set at all; fi
if [ -z "${VAR}" ]; then echo MP:1 VAR is not set at all; fi
VAR=
if [ -z "${VAR+xxx}" ]; then echo JL:2 VAR is not set at all; fi
if [ ...