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How to access command line parameters?
...Rust, a macro can be used to automatically generate the struct and do type based decoding:
docopt!(Args, "
Usage: cp [-a] SOURCE DEST
cp [-a] SOURCE... DIR
Options:
-a, --archive Copy everything.
")
And you can get the args with:
let args: Args = Args::docopt().decode().unwrap_or_el...
PostgreSQL: Show tables in PostgreSQL
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From the psql command line interface,
First, choose your database
\c database_name
Then, this shows all tables in the current schema:
\dt
Programmatically (or from the psql interface too, of course):
SELECT * FROM pg_catalog.pg_tables;
The system tables live in the pg_catalo...
remove_if equivalent for std::map
I was trying to erase a range of elements from map based on particular condition. How do I do it using STL algorithms?
13 A...
Using group by on multiple columns
...mn_name;
Remember this order:
SELECT (is used to select data from a database)
FROM (clause is used to list the tables)
WHERE (clause is used to filter records)
GROUP BY (clause can be used in a SELECT statement to collect data
across multiple records and group the results by one or more column...
Swift: Convert enum value to String?
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This is really helpful, especially if my enum is not based on Strings
– daspianist
Mar 31 '17 at 17:42
1
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Unable to install Maven on Windows: “JAVA_HOME is set to an invalid directory”
...rrent place of work I was unable to set enviroment variables on my Windows based PC.
My workaround was to copy the mvn.bat file from %M2% into C:\WINNT and add the following to the top of the batch file:
@REM Needed as unable to set env variables on my desktop PC.
set MAVEN_OPTS=-Xms256m -Xmx1024...
How to trigger XDebug profiler for a command line PHP script?
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On *nix based systems, you can make this a bit easier to use by creating an alias, such as: alias phpp="php -d xdebug.profiler_enable=1". That way when you don't want to profile just use php and when you do use phpp.
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Converting an object to a string
... but there are still quite a few IE7 users out there (depends on your user base).
– MikeMurko
Nov 21 '11 at 14:35
31
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‘ld: warning: directory not found for option’
...ng an existing configuration, you need to run pod install to adjust the “Based on Configuration File” column value.
– Cellane
Mar 20 '17 at 8:38
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How to remove indentation from an unordered list item?
...ase there is a main css rule that needs to be overridden with changing the base file, so it left in tack like not hacking core ? I dont know maybe I'm wrong
– naeluh
Dec 10 '13 at 22:23
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