Process#

Functions for managing processes.

check-not-root#

Check if script is not running as root. If running as root, print an error and return with non-zero exit code.

Usage

check-not-root

check-root#

Determine if script is running as root. If not running as root, print an error and return with non-zero exit code.

Usage

check-root

command-exists#

Verify if command is available on the system. Return non-zero exit code if the command is not available.

Usage

command-exists COMMAND

Params:
COMMAND            Command to check

foreach-subdir#

Run a command in each subdirectory of current working dir. Commands are executed in a subshell, so they will continue on errors and have no effect on the current shell.

Usage

foreach-subdir COMMAND

Params:
COMMAND            Command to run

foreach-subdir-pipe#

Run command in each sub directory of current working dir and pipe results to another command. Commands are executed in a nested shell so they will continue on errors and have no effect on the current shell.

Usage

foreach-subdir-pipe COMMAND PIPE

Params:
COMMAND            Command to run
PIPE               Command to pipe to

monitor-proc-memory#

Monitor memory usage - actually resident set size (RSS), the non-swapped physical memory that a process has used. Memory usage is printed on every seconds. Peak RSS is saved and printed on screen also.

Usage

monitor-proc-memory COMMAND

Params:
COMMAND            Command optionally with arguments

proc-is-running#

Check if process is running. Return non-zero exit code if not running.

Usage

proc-is-running COMMAND

Params:
COMMAND            Command to check