Titlebook: Expert Shell Scripting; Ron Peters Book 2009 Ron Peters 2009 Debugging.Linux.OS X.Processing.RCS.configuration.shell scripting.system admi

先鋒派

Command-Line Editing and Historyty to recall and modify previous commands quickly and efficiently is beneficial. In the old DOS days, a utility called . would keep your history in a buffer. You could go back or forth through the command history one command at a time by using the up and down arrow keys. Individual commands could be

MINT

Scripting from the Command Lineth me; pretty much anything you can do in a shell script, you can also do from the command line. I’ve coded many ad hoc scripts right at the command line. I wouldn’t recommend writing anything significant that way, but for quickies it’s just the ticket.

HAWK

鋼筆記下懲罰

https://doi.org/10.1007/979-8-8688-0844-9ibrary in place, many of the tools you need often are close at hand and you don’t have to code the functions anew each time you need them. This chapter shows you how to set up a standard function library and how to utilize the library in your scripts.

放肆的你

Genes, Technology, and Apocalypsethis technique is that you can write a single program and have it perform multiple tasks based on the command-line input. Additionally, you’re not duplicating code by writing smaller, more specific scripts tailored to each individual task.

Infantry

捕鯨魚叉

Standard Function Libraryibrary in place, many of the tools you need often are close at hand and you don’t have to code the functions anew each time you need them. This chapter shows you how to set up a standard function library and how to utilize the library in your scripts.

Petechiae

Accepting Command-Line Options, Switches, and Parametersthis technique is that you can write a single program and have it perform multiple tasks based on the command-line input. Additionally, you’re not duplicating code by writing smaller, more specific scripts tailored to each individual task.

耕種

Throttling Parallel Processesormed in parallel. Neither of these methods scales well when you run a large environment, however. Processing the list sequentially is not an efficient use of resources and can take a long time to complete.

Interstellar