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How to get disk capacity and free space of remote computer
...t Win32_LogicalDisk -ComputerName remotecomputer -Filter "DeviceID='C:'" |
Select-Object Size,FreeSpace
$disk.Size
$disk.FreeSpace
To extract the values only and assign them to a variable:
$disk = Get-WmiObject Win32_LogicalDisk -ComputerName remotecomputer -Filter "DeviceID='C:'" |
Foreach-Obje...
Artificially create a connection timeout error
...o use a different port that is blocked. So you can always use <your-own-ip>:<blocked-port>.
– James Selvakumar
Aug 14 '14 at 3:58
9
...
Interpolating a string into a regex
...uote or Regexp.escape if I just used single quotes on my input string: (an IP address match)
IP_REGEX = '\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}'
my_str = "192.0.89.234 blahblah text 1.2, 1.4" # get the first ssh key
# replace the ip, for demonstration
my_str.gsub!(/#{IP_REGEX}/,"192.0.2.0")
puts my_...
Errors: “INSERT EXEC statement cannot be nested.” and “Cannot use the ROLLBACK statement within an I
...our stored procedure data into it
EXAMPLE:
INSERT INTO #YOUR_TEMP_TABLE
SELECT * FROM OPENROWSET ('SQLOLEDB','Server=(local);TRUSTED_CONNECTION=YES;','set fmtonly off EXEC [ServerName].dbo.[StoredProcedureName] 1,2,3')
Note: You MUST use 'set fmtonly off', AND you CANNOT add dynamic sql to this...
Save PL/pgSQL output from PostgreSQL to a CSV file
...e or automate, you can use Postgresql's built in COPY command. e.g.
Copy (Select * From foo) To '/tmp/test.csv' With CSV DELIMITER ',' HEADER;
This approach runs entirely on the remote server - it can't write to your local PC. It also needs to be run as a Postgres "superuser" (normally called "ro...
NGINX to reverse proxy websockets AND enable SSL (wss://)?
...NX config files so you can re-use them (that includes your init.d/nginx script)
yum install pcre pcre-devel openssl openssl-devel and any other necessary libs for building NGINX
Get the nginx_tcp_proxy_module from GitHub here https://github.com/yaoweibin/nginx_tcp_proxy_module and remember the folde...
Find the PID of a process that uses a port on Windows
...l (Core-compatible) one-liner to ease copypaste scenarios:
netstat -aon | Select-String 8080 | ForEach-Object { $_ -replace '\s+', ',' } | ConvertFrom-Csv -Header @('Empty', 'Protocol', 'AddressLocal', 'AddressForeign', 'State', 'PID') | ForEach-Object { $portProcess = Get-Process | Where-Object Id...
How to do a regular expression replace in MySQL?
...ositions and perform substring substitution and extraction, respectively.
SELECT REGEXP_REPLACE('Stackoverflow','[A-Zf]','-',1,0,'c');
-- Output:
-tackover-low
DBFiddle Demo
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How to combine date from one field with time from another field - MS SQL Server
...ro (base date: January 1, 1900)
Adding them returns the correct result.
SELECT Combined = MyDate + MyTime FROM MyTable
Rationale (kudos to ErikE/dnolan)
It works like this due to the way the date is stored as two 4-byte
Integers with the left 4-bytes being the date and the right
4-bytes...
How to define a preprocessor symbol in Xcode
...ur Target or Project settings, click the Gear icon at the bottom left, and select "Add User-Defined Setting". The new setting name should be GCC_PREPROCESSOR_DEFINITIONS, and you can type your definitions in the right-hand field.
Per Steph's comments, the full syntax is:
constant_1=VALUE constant_...