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How to track down a “double free or corruption” error
...t main()
{
char *x = malloc(100);
free(x);
free(x);
return 0;
}
[sand@PS-CNTOS-64-S11 testbox]$ vim t1.c
[sand@PS-CNTOS-64-S11 testbox]$ cc -g t1.c -o t1
[sand@PS-CNTOS-64-S11 testbox]$ ./t1
*** glibc detected *** ./t1: double free or corruption (top): 0x00000000058f7010 ***
======= Backtrace: ...
Git Bash is extremely slow on Windows 7 x64
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Didn't help me, but helped the export PS1='$' mentioned below. So I know for me the problem is the terminal line.
– Koshmaar
Feb 8 '16 at 10:52
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How to pass boolean values to a PowerShell script from a command prompt
...s being treated as a string value, in a similar way to the example below:
PS> function f( [bool]$b ) { $b }; f -b '$false'
f : Cannot process argument transformation on parameter 'b'. Cannot convert value
"System.String" to type "System.Boolean", parameters of this type only accept
booleans or...
How to remove old Docker containers
...an example on how to clean up old containers that are weeks old:
$ docker ps --filter "status=exited" | grep 'weeks ago' | awk '{print $1}' | xargs --no-run-if-empty docker rm
To give credit, where it is due, this example is from https://twitter.com/jpetazzo/status/347431091415703552.
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Split output of command by columns using Bash?
...ay is to add a pass of tr to squeeze any repeated field separators out:
$ ps | egrep 11383 | tr -s ' ' | cut -d ' ' -f 4
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Removing path and extension from filename in powershell
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There's a handy .NET method for that:
C:\PS> [io.path]::GetFileNameWithoutExtension("c:\temp\myfile.txt")
myfile
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How does one remove an image in Docker?
.... That should work.
Seeing all created containers is as simple as docker ps -a.
To remove all existing containers (not images!) run docker rm $(docker ps -aq)
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How to get the process ID to kill a nohup process?
...f you need to force kill). Alternatively, you can find the PID later on by ps -ef | grep "command name" and locate the PID from there. Note that nohup keyword/command itself does not appear in the ps output for the command in question.
If you use a script, you could do something like this in the scr...
powershell - extract file name and extension
...isk and as others have stated, use the BaseName and Extension properties:
PS C:\> dir *.xlsx | select BaseName,Extension
BaseName Extension
-------- ---------
StackOverflow.com Test Config .xlsx
If you are given the fil...
Check if a Windows service exists and delete in PowerShell
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More recent versions of PS have Remove-WmiObject, and beware of silent fails for $service.delete() - have added another answer with formatted examples.
– Straff
May 3 '16 at 23:07
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