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RESTful Alternatives to DELETE Request Body
...s a sure-fire way to randomly lose data as your bits traverse the internet pipes, and you'll have a very difficult time debugging it.
– Nicholas Shanks
Sep 10 '14 at 9:25
3
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Creating a daemon in Linux
...ed that initialization is complete. This can be implemented via an unnamed pipe or similar communication channel that is created before the first fork() and hence available in both the original and the daemon process.
Call exit() in the original process. The process that invoked the daemon must be...
How to detect if a script is being sourced
...amp;& sourced=1 || sourced=0
POSIX-compliant; not a one-liner (single pipeline) for technical reasons and not fully robust (see bottom):
sourced=0
if [ -n "$ZSH_EVAL_CONTEXT" ]; then
case $ZSH_EVAL_CONTEXT in *:file) sourced=1;; esac
elif [ -n "$KSH_VERSION" ]; then
[ "$(cd $(dirname -- ...
How do I grant myself admin access to a local SQL Server instance?
...dmin' role ...
for /F "usebackq tokens=1,3" %%i in (`sqlcmd -S np:\\.\pipe\SQLLocal\%sqlinstance% -E -Q "create table #foo (bar int); declare @rc int; execute @rc = sp_addsrvrolemember '$(sqllogin)', 'sysadmin'; print 'RETURN_CODE : '+CAST(@rc as char)"`) do if .%%i == .RETURN_CODE set sqlresul...
Why does Python print unicode characters when the default encoding is ASCII?
...ams (from the terminal's locale settings), but is likely to not be set for pipes
so a print u'\xe9' is likely to succeed when the output is to a terminal, and fail if it's redirected. A solution is to encode() the string with the desired encoding before printing.
When printing str, the bytes are...
Is recursion ever faster than looping?
...methods will result in the same assembly being generated (put that in your pipe and smoke it).
Addendum: In some environments, the best alternative is neither recursion nor iteration but instead higher order functions. These include "map", "filter", and "reduce" (which is also called "fold"). Not...
eval command in Bash and its typical uses
.../user1 > # Above command didn't work as ls tried to list file with name pipe (|) and more. But these files are not there
/home/user1 > eval $a
file.txt
mailids
remote_cmd.sh
sample.txt
tmp
/home/user1 >
share
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Caveats of select/poll vs. epoll reactors in Twisted
...m/to a normal file. Whereas previously stdin and stdout would have been a pipe -- supported by epoll just fine -- it then becomes a normal file and epoll fails loudly, breaking the application.
share
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Quickly find whether a value is present in a C array?
...st instructions in one clock cycle, but the instructions are executed in a pipeline. C compilers will try to eliminate the pipeline delays by interleaving other instructions in between. When presented with a tight loop like the original C code, the compiler will have a hard time hiding the delays be...
Select the values of one property on all objects of an array in PowerShell
...fo or FileInfo objects. You can always inspect the type coming through the pipeline by piping to Get-Member (alias gm).
ls | select -Property Name | gm
So, to expand the object to be that of the type of property you're looking at, you can do the following:
ls | select -ExpandProperty Name
In y...