By Arnold Robbins

It’s uncomplicated: to be able to engage deeply with Mac OS X, Linux, and different Unix-like structures, you must understand how to paintings with the Bash shell. This concise little publication places all the crucial information regarding Bash correct at your fingertips.

You’ll fast locate solutions to the aggravating questions that typically arise whilst you’re writing shell scripts: What characters do you want to cite? How do you get variable substitution to do just what you will have? How do you employ arrays? up to date for Bash model 4.4, this booklet has the solutions to those and different difficulties in a layout that makes searching fast and easy.

Topics include:

  • Invoking the shell
  • Syntax
  • Functions and variables
  • Arithmetic expressions
  • Command history
  • Programmable completion
  • Job control
  • Shell options
  • Command execution
  • Coprocesses
  • Restricted shells
  • Built-in commands
  • Source: Amazon Retail AZW3

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    Extra info for Bash Pocket Reference: Help for Power Users and Sys Admins (2nd Edition)

    Example text

    Html doesn’t match the directive, so access will be granted. html. There is an Apache module called mod_hfs_apple, available from , which attempts to solve this security problem. It may not solve the entire problem yet, however, so check around for security updates before deploying an Apache server on HFS+ in public. And when writing file-handling code in your own modules, try to keep the case-insensitive nature of the HFS+ filesystem in mind so that you don’t create any bugs or security holes of your own.

    Gz in the mod_perl source directory. It will contain all the required files for a mod_perl build, including the necessary files from the Apache sources. This will allow you to successfully perform an APXS build against an existing Apache installation without also needing to have the full set of Apache sources present on the new machine. 10. If your httpd already contains a static mod_perl, then all you need are the Perl modules that mod_perl installs for you. tar, which can then be extracted into the site_perl directory on another machine.

    By default, Apache uses --with-layout=Apache, which installs the httpd binary and supporting files and documentation into /usr/local/apache. layout, or add your own layout to the file. PL. layout, so unless the two match exactly you will not end up with the layout you expect. 10. Adding mod_perl to an Existing Apache Server You have an Apache server installed and want to add mod_perl to it. Technique Build mod_perl outside of the Apache environment using APXS. PL \ USE_APXS=1 \ WITH_APXS=/usr/local/apache/bin/apxs \ EVERYTHING=1 Comments With USE_DSO=1 in your build arguments, mod_perl not only adds itself to Apache as a DSO, but it also builds Apache at the same time.

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