Advanced Bash-Scripting Guide. A complete guide to shell by Cooper M.

By Cooper M.

The complex Bash Scripting advisor is either a reference and an educational on shell scripting. This complete ebook (the an identical of approximately 646 print pages) covers virtually each point of shell scripting. It includes over three hundred profusely commented illustrative examples, and a couple of tables. not only a shell scripting educational, this ebook additionally presents an creation to simple programming recommendations, similar to sorting and recursion. it really is like minded for both person research or lecture room use.

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Xclients elif [ −f /etc/X11/xinit/Xclients ]; then exec /etc/X11/xinit/Xclients else # failsafe settings. Although we should never get here # (we provide fallbacks in Xclients as well) it can't hurt. html & fi fi Explain the "test" constructs in the above excerpt, then examine the entire file, /etc/X11/xinit/xinitrc, and analyze the if/then test constructs there. You may need to refer ahead to the discussions of grep, sed, and regular expressions. 5. Testing Your Knowledge of Tests 51 Chapter 8.

Quoting 31 Advanced Bash−Scripting Guide Example 6−1. sh: Echoing weird variables. var="'(]\\{}\$\"" echo $var # '(]\{}$" echo "$var" # '(]\{}$" Doesn't make a difference. echo IFS='\' echo $var echo "$var" # '(] {}$" # '(]\{}$" \ converted to space. C. exit 0 Single quotes (' ') operate similarly to double quotes, but do not permit referencing variables, since the special meaning of $ is turned off. Within single quotes, every special character except ' gets interpreted literally. Consider single quotes ("full quoting") to be a stricter method of quoting than double quotes ("partial quoting").

Applications 17. Here Documents 18. 2.

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