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- obselete
- ortability issues. This first table lists syntax that is tolerated by Bash but has few if any legitimat... s to say, don't use it.| This table lists syntax that is specified by POSIX (unless otherwise specified... ncouraging bad practices or dangerous code. Those that are specified by POSIX may be badly designed and ... by default, unless they are quoted.** This means that the act of expanding an unquoted variable in an o
- behaviours
- ofile'', ''~/.bash_login'', or ''~/.profile'' (in that order, using the first one that's readable!). When a login shell exits, Bash reads and executes comman... ll mode? There are many actions and variable sets that only make sense for the initial user login. That's why all UNIX(r) shells have (should have) a "login"
- scripting
- FIXME continue These are some coding guidelines that helped me to read and understand my own code over the years. They also will help to produce code that will be a bit more robust than "if something brea... le code (not only in shell) during all the years, that I'm 100% convinced there needs to be //some// cod... entation guidelines ===== Indentation is nothing that technically influences a script, it's only for us
- basics
- e executable, but you can call a Bash script with that filename as a parameter: <code> bash ./myfile </c... g filename extension** like ''.bash'' or ''.sh''. That is a holdover from UNIX(r), where executables are... = The in-file specification of the interpreter of that file, for example: <code bash> #!/bin/bash echo "... the operating system, not for the shell. Programs that don't ignore such lines, may not work as shebang
- color
- defined as a 24-bit (888 rgb) color. This means that current support can only display 256 different colors in the terminal while "true color" means that you can display 16 million different colors at th... ; } printf "\n"; }' </code> Keep in mind that it is possible to use both ';' and ':' as Control... ble needs to be set. This would be system-wide so that the user would not need to set it separately for
- truecolor
- defined as a 24-bit (888 rgb) color. This means that current support can only display 256 different colors in the terminal while "true color" means that you can display 16 million different colors at th... ; } printf "\n"; }' </code> Keep in mind that it is possible to use both ';' and ':' as Control... ble needs to be set. This would be system-wide so that the user would not need to set it separately for