Linux Job Management Notes: Difference between revisions

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Job management and control: &, CTRL-Z, jobs, fg, bg
Job management and control: &, CTRL-Z, jobs, fg, bg
The user login shell is the first program that runs when the user logs into the workstation. The formal definition of the program is a command language interpreter that executes commands; also referred to as an interface between the user and the system. Bash (Bourne Again Shell) is a command line-only interface where programs also referred to as jobs are lunched and controlled, when a job starts it takes control of the terminal, when the job is finished, control is given back to bash, and a command line is redisplayed for the user. However, you can start a job using the ampersand & that states a condition that the job give up control to bash, and give the user a command line while the job continues to run in the background.
The user login shell is the first program that runs when the user logs into the workstation. The formal definition of the program is a command language interpreter that executes commands; also referred to as an interface between the user and the system. Bash (Bourne Again Shell) is a command line-only interface where programs also referred to as jobs are lunched and controlled, when a job starts it takes control of the terminal, when the job is finished, control is given back to bash, and a command line is redisplayed for the user. However, you can start a job using the ampersand & that states a condition that the job give up control to bash, and give the user a command line while the job continues to run in the background.

Revision as of 02:37, 13 July 2011

Job management and control: &, CTRL-Z, jobs, fg, bg

The user login shell is the first program that runs when the user logs into the workstation. The formal definition of the program is a command language interpreter that executes commands; also referred to as an interface between the user and the system. Bash (Bourne Again Shell) is a command line-only interface where programs also referred to as jobs are lunched and controlled, when a job starts it takes control of the terminal, when the job is finished, control is given back to bash, and a command line is redisplayed for the user. However, you can start a job using the ampersand & that states a condition that the job give up control to bash, and give the user a command line while the job continues to run in the background.