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Compare integer in bash, unary operator expected
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Your piece of script works just great. Are you sure you are not assigning anything else before the if to "i"?
A common mistake is also not to leave a space after and before the square brackets.
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How to render a PDF file in Android
...sDialog.show( context, context.getString( R.string.pdf_show_local_progress_title ), context.getString( R.string.pdf_show_local_progress_content ), true );
// Create the download request
DownloadManager.Request r = new DownloadManager.Request( Uri.parse( pdfUrl ) );
r.setDest...
How to send only one UDP packet with netcat?
... -q1 option on my netcat. Instead I used the -w1 option. Below is the bash script I did to send an udp packet to any host and port:
#!/bin/bash
def_host=localhost
def_port=43211
HOST=${2:-$def_host}
PORT=${3:-$def_port}
echo -n "$1" | nc -4u -w1 $HOST $PORT
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乐高机器人®组件 · App Inventor 2 中文网
... function HideORDispFeedback() { $("#feedback").toggle();}function makeTitleDraggable(element, titleElement) { let isDragging = false; let offsetX, offsetY; // 只在标题栏上按下时开始拖动 titleElement.onmousedown = function(e) { isDragging = true; offset...
Where does Jenkins store configuration files for the jobs it runs?
...nkins installation folder, you could create a simple jenkins job and run a script that tars all the config files for the jobs: "tar -zcvf jenkins-jobs-configs.tar.gz $(find ${JENKINS_HOME}/jobs -name config.xml -maxdepth 2) ". You could then archive jenkins-jobs-configs.tar.gz
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What is the “-d” in “npm -d install”?
...argument. For example, this issue refers to doing npm -d install coffee-script . There are a few other pages that also refer to this syntax, including the install instructions for at least one npm package.
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Creating an empty file in Ruby: “touch” equivalent?
... When is "at some point" going to happen? At the end of the script, or immediately because it hasn't been assigned to any variable? I'm creating the file so other processes on the system can start working with it immediately, and they will be blocked if the file handle is still open f...
How do you use gcc to generate assembly code in Intel syntax?
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Despite its incorrect filename att2intel.sed, that sed script converts the other way, from Intel to ATT.
– Jonathon Reinhart
Jun 28 '11 at 20:54
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How to change value of process.env.PORT in node.js?
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Running your node scripts as root (sudo) is not recommended. Use sudo iptables -t nat -I PREROUTING -p tcp --dport 80 -j REDIRECT --to-port 8080, and listen on port 8080 instead. stigok.tumblr.com/post/139320914543/…
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What is the difference between compile code and executable code?
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A build could be seen as a script, which comprises of many steps - the primary one of which would be to compile the code.
Others could be
running tests
reporting (e.g. coverage)
static analysis
pre and post-build steps
running custom tools over cert...