$ quietly() { "$@" > /dev/null 2>&1; }
This works even if there are spaces in any word in the command line.
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by David Winterbottom (codeinth…
$ mplayer -af scaletempo=scale=1.5 foo.mp3
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by David Winterbottom (codeinthehole.com)
$ function quietly () { $* 2> /dev/null > /dev/null; };
Suppresses all output to /dev/null. This could be expanded to check for a -l command line option to log the stderr to a file maybe -l file or -l to log to default quietly.log. I’m finding th…
$ netstat -plnt
While `lsof` will work, why not use the tool designed explicitly for this job?
(If not run as root, you will only see the names of PID you own)
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$ cat ~/.ssh/id_rsa.pub | ssh <REMOTE> "(cat > tmp.pubkey ; mkdir -p .ssh ; touch .ssh/authorized_keys ; sed -i.bak -e ‘/$(awk ‘{print $NF}’ ~/.ssh/id_rsa.pub)/d’ .ssh/authorized_keys; cat tmp.pubkey >> .ssh/authorized_keys; rm tmp…
$ ffmpeg -f alsa -ac 2 -i pulse -f x11grab -r 30 -s 1024×768 -i :0.0 -acodec pcm_s16le -vcodec libx264 -vpre lossless_ultrafast -threads 0 ./Desktop/mydesktop.mkv
You will have to use the sound preferences (record) to choose the audio source and set it…
$ lsof -Pn | grep LISTEN
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by David Winterbottom (codeinthehole.com)
$ strings ~/.mozilla/firefox/*/webappsstore.sqlite|grep -Eo "^.+\.:" |rev
Someone over at Mozilla dot Org probably said, “I know, let’s create a super-duper universal replacement for browser cookies that are persistent and even more creepy a…
$ command -v bash
it is generally advised to avoid using which(1) whenever possible. which(1) is usually a csh(1) script, or sometimes a compiled binary. It’s output is highly variable from operating system to operating system, so platform independent …
$ netstat -lantp | grep ESTABLISHED |awk ‘{print $5}’ | awk -F: ‘{print $1}’ | sort -u
find all computer connected to my host through TCP connection.
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by D…
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