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In Docker, what's the difference between a container and an image? [duplicate]
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Images are frozen immutable snapshots of live containers. Containers are running (or stopped) instances of some image.
Start with the base image called 'ubuntu'. Let's run bash interactively within the ubuntu image and create a file. We'll use the -i and ...
Node / Express: EADDRINUSE, Address already in use - Kill server
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You can also go the command line route:
ps aux | grep node
to get the process ids.
Then:
kill -9 PID
Doing the -9 on kill sends a SIGKILL (instead of a SIGTERM).
SIGTERM has been ignored by node for me sometimes.
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Timeout a command in bash without unnecessary delay
...e -i delay=DEFAULT_DELAY
function printUsage() {
cat <<EOF
Synopsis
$scriptName [-t timeout] [-i interval] [-d delay] command
Execute a command with a time-out.
Upon time-out expiration SIGTERM (15) is sent to the process. If SIGTERM
signal is blocked, then the subsequent...
Can I use GDB to debug a running process?
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Yes you can. Assume a process foo is running...
ps -elf | grep foo
look for the PID number
gdb -a {PID number}
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fol...
Stopping an Android app from console
...ear out all the stored data for that app.
If you're on Linux:
adb shell ps | grep com.myapp | awk '{print $2}' | xargs adb shell kill
That will only work for devices/emulators where you have root immediately upon running a shell. That can probably be refined slightly to call su beforehand.
Oth...
How to check status of PostgreSQL server Mac OS X
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The simplest way to to check running processes:
ps auxwww | grep postgres
And look for a command that looks something like this (your version may not be 8.3):
/Library/PostgreSQL/8.3/bin/postgres -D /Library/PostgreSQL/8.3/data
To start the server, execute something l...
heroku - how to see all the logs
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heroku logs --source app -t
Or see only the router logs
heroku logs --ps router
Or chain them together
heroku logs --source app --ps worker
So good..
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OSX - How to auto Close Terminal window after the “exit” command executed.
...rl. I'd say it's a case of PEBBAF (Problem exist between brain and fingertips).
– holygeek
Apr 7 '11 at 2:05
kill/kill...
How can I get the current user's username in Bash?
...e I've used on Solaris 9 and Linux and which works fine for both of them:
ps -o user= -p $$ | awk '{print $1}'
This snippet prints the name of the user with the current EUID.
NOTE: you need Bash as the interpreter here.
On Solaris you have problems with methods, described above:
id does not a...
How to change the output color of echo in Linux
...ption:
If you are going to use these codes in your special bash variables
PS0
PS1
PS2 (= this is for prompting)
PS4
you should add extra escape characters so that bash can interpret them correctly. Without this adding extra escape characters it works but you will face problems when you use Ctrl + ...