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Operating System Operations

Functions

.os.sleep

Suspends execution for a specified number of milliseconds.

Parameters Type Description
ms i64 Number of milliseconds to sleep

.os.glob

Expands a glob pattern and returns file information as a DataFrame.

Parameters Type Description
path str or sym Glob pattern to expand (e.g., "*.txt", "data/*.csv")

Example:

// Get all CSV files in current directory
files: .os.glob("*.csv");

// Get all files recursively in data directory
all_files: .os.glob("data/**/*");

// Get all CSV files in current directory
files: .os.glob["*.csv"];

// Get all files recursively in data directory
all_files: .os.glob["data/**/*"];

.os.setenv

Sets an environment variable.

Parameters Type Description
name str or sym Environment variable name
value str or sym Environment variable value

Example:

// Set environment variable
.os.setenv("DEBUG", "1");
// Set database connection string
.os.setenv("DB_URL", "postgresql://user:pass@localhost/db");

// Set environment variable
.os.setenv["DEBUG"; "1"]

// Set database connection string
.os.setenv["DB_URL"; "postgresql://user:pass@localhost/db"]

.os.seed

Sets the global random seed for reproducible random number generation.

Parameters Type Description
seed i64 Random seed value

Example:

// Set random seed for reproducible results
.os.seed(42);

// Generate random numbers (will be consistent with seed 42)
random_values: 10?100;

// Set random seed for reproducible results
.os.seed[42];

// Generate random numbers (will be consistent with seed 42)
random_values: 10?100;

.os.system

Executes a system command and returns its output.

Parameters Type Description
command str or sym System command to execute

Example:

// List files in current directory
files: .os.system("ls -la");

// Get system information
info: .os.system("uname -a");

// Check disk usage
usage: .os.system("df -h");

// List files in current directory
files: .os.system["ls -la"];

// Get system information
info: .os.system["uname -a"];

// Check disk usage
usage: .os.system["df -h"];

.os.getenv

Retrieves the value of an environment variable.

Parameters Type Description
name str or sym Environment variable name

Example:

// Get user's home directory
home: .os.getenv("HOME");

// Get current working directory
pwd: .os.getenv("PWD");

// Check if DEBUG is set
debug: .os.getenv("DEBUG");

// Get user's home directory
home: .os.getenv["HOME"];

// Get current working directory
pwd: .os.getenv["PWD"];

// Check if DEBUG is set
debug: .os.getenv["DEBUG"];

.os.mem

Retrieves the memory usage of the current process and the system available memory.

Parameters Type Description
None None None

Example:

// Get memory usage
.os.mem();

// Get memory usage
.os.mem[];

.os.pid

Retrieves the process ID of the current process.

Parameters Type Description
None None None

.os.version

Retrieves the version of the current process.

Parameters Type Description
None None None

.os.syntax

Retrieves the syntax type of the current process.

Parameters Type Description
None None None