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How do I write a bash script to restart a process if it dies?
... good reason why in UNIX, you can ONLY wait on your children. Any method (ps parsing, pgrep, storing a PID, ...) that tries to work around that is flawed and has gaping holes in it. Just say no.
Instead you need the process that monitors your process to be the process' parent. What does this mea...
How do I change the cursor between Normal and Insert modes in Vim?
...e cursor line to your liking (see :help :highlight and
:help highlight-groups).
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How do you attach and detach from Docker's process?
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91262536f7c9a3060641448120bda7af5ca812b0beb8f3c9fe72811a61db07fc
# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
91262536f7c9 ubuntu "/bin/bash" 5 seconds ago Up 4 seconds ...
What does the “@” symbol do in Powershell?
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In PowerShell V2, @ is also the Splat operator.
PS> # First use it to create a hashtable of parameters:
PS> $params = @{path = "c:\temp"; Recurse= $true}
PS> # Then use it to SPLAT the parameters - which is to say to expand a hash table
PS> # into a set of com...
Kill process by name?
...
Assuming you're on a Unix-like platform (so that ps -A exists),
>>> import subprocess, signal
>>> import os
>>> p = subprocess.Popen(['ps', '-A'], stdout=subprocess.PIPE)
>>> out, err = p.communicate()
gives you ps -A's output in the o...
What is RSS and VSZ in Linux memory management
... time, you could see RSS going up and VSZ staying the same.
There is also PSS (proportional set size). This is a newer measure which tracks the shared memory as a proportion used by the current process. So if there were two processes using the same shared library from before:
PSS: 400K + (1000K/...
How to see top processes sorted by actual memory usage?
... for a little while: "unused memory is wasted memory". The Linux kernel keeps around huge amounts of file metadata and files that were requested, until something that looks more important pushes that data out. It's why you can run:
find /home -type f -name '*.mp3'
find /home -type f -name '*.aac'
...
Why are my PowerShell scripts not running?
...PowerShell like this:
powershell -executionpolicy bypass -File .\MYSCRIPT.ps1
That is, I added the -executionpolicy bypass to the way I invoked the script.
This worked on Windows 7 Service Pack 1. I am new to PowerShell, so there could be caveats to doing that that I am not aware of.
[Edit 2017...
Bash script error [: !=: unary operator expected
...ary concerns.
In the case the first arg is '-v', then do your conditional ps -ef, else in all other cases throw the usage.
#!/bin/sh
case $1 in
'-v') if [ "$1" = -v ]; then
echo "`ps -ef | grep -v '\['`"
else
echo "`ps -ef | grep '\[' | grep root`"
fi;;
*) ...
Java: PrintStream to String?
... final String utf8 = StandardCharsets.UTF_8.name();
try (PrintStream ps = new PrintStream(baos, true, utf8)) {
yourFunction(object, ps);
}
String data = baos.toString(utf8);
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