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Docker can't connect to docker daemon
...etting SSH command: Something went wrong running an SSH command!
command : cat /etc/os-release
err : exit status 255
output :
just re-run the three commands another time, and it should work the second time.
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How can I write output from a unit test?
...croll bar is too small to be noticed or used.
– Meow Cat 2012
Jul 24 '19 at 4:55
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Only read selected columns
...t 7 columns are "integer" and we set the remaining 6 columns to "NULL" indicating they should be skipped
> read.table("data.txt", colClasses = c(rep("integer", 7), rep("NULL", 6)),
+ header = TRUE)
Year Jan Feb Mar Apr May Jun
1 2009 -41 -27 -25 -31 -31 -39
2 2010 -41 -27 -25 -31 -...
bpftrace教程【官方】 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...示预期的进程号和进程名信息。
12. 内核结构跟踪
# cat path.bt
#include <linux/path.h>
#include <linux/dcache.h>
kprobe:vfs_open
{
printf("open path: %s\n", str(((struct path *)arg0)->dentry->d_name.name));
}
# bpftrace path.bt
Attaching 1 probe...
open path: dev...
How to delete a workspace in Perforce (using p4v)?
...d also be done without a visual client with the following small script.
$ cat ~/bin/pdel
#!/bin/sh
#Todo: add error handling
( p4 -c $1 client -o | perl -pne 's/\blocked\s//' | p4 -c $1 client -i ) && p4 client -d $1
...
sed edit file in place
...neath by the patch command, or even worse by the tee command that will truncate the file. Actually I'm not sure if patch will not truncate as well. I think saving output to another file and then cat-ing into original would be safer.
– akostadinov
May 26 '16 at ...
Git error: “Host Key Verification Failed” when connecting to remote repository
...
You are connecting via the SSH protocol, as indicated by the ssh:// prefix on your clone URL. Using SSH, every host has a key. Clients remember the host key associated with a particular address and refuse to connect if a host key appears to change. This prevents man in the...
Remove element by id
... As usual it's safe to implement a polyfill.
– Super Cat
Aug 10 '16 at 21:31
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Differences between C++ string == and compare()?
...
21.4.8.2 operator==
template<class charT, class traits, class Allocator>
bool operator==(const basic_string<charT,traits,Allocator>& lhs,
const basic_string<charT,traits,Allocator>& rhs) noexcept;
Returns: lhs.compare(rhs) == 0.
Seems like ther...
How to convert jsonString to JSONObject in Java
...ry {
JSONObject jsonObject = new JSONObject("{\"phonetype\":\"N95\",\"cat\":\"WP\"}");
}catch (JSONException err){
Log.d("Error", err.toString());
}
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