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- obselete
- ld never use them. None of the items on this list are specified by the most current version of POSIX, a... rtain details like whether a newline or semicolon are required vary. Only ''for'' works in Bash. Needle... aging bad practices or dangerous code. Those that are specified by POSIX may be badly designed and unch... n, [[commands:builtin:read]] |//Quoting errors// are a broad category of common mistakes brought about
- behaviours
- it exists. Why an extra login shell mode? There are many actions and variable sets that only make sen... POSIX(r) standard as well. The profile files read are ''/etc/profile'' and ''~/.profile'', if it's a lo... ame of the startup file. After the startup files are read, Bash enters the [[#posix_run_mode | POSIX(r... [syntax:shellvars#ENV|ENV]] variable and commands are read and executed from the file whose name is the
- scripting
- cripting with style ====== FIXME continue These are some coding guidelines that helped me to read and... and the corresponding action terminator ('';;'') are indented at the same level * the action command lists are indented one more level (and continue to have the... ucts, we all know them, we all love them. If they are not 100% needed, avoid them, since nobody except
- basics
- hat is a holdover from UNIX(r), where executables are not tagged by the extension, but by **permissions... our variables, as shell and system-variable names are usually all in UPPERCASE. However, you should avo... number between 0 and 255. Values from 126 to 255 are reserved for use by the shell directly, or for sp... builtin (see code 128) The lower codes 0 to 125 are not reserved and may be used for whatever the pro
- color
- r palette: 216 colors + 16 ANSI + 24 gray (colors are 24-bit)\\ - 24-bit true color: "888" colors (aka ... ct.org/) - A top-down terminal for GNOME\\ There are a bunch of libvte-based terminals for GTK2, so they are listed in the another section. Also, while this ... 67b4\\ Note about color differences: a) RGB axes are not orthogonal, so you cannot use sqrt(R^2+G
- truecolor
- r palette: 216 colors + 16 ANSI + 24 gray (colors are 24-bit) - 24-bit true color: "888" colors (aka 16... ject.org/) - A top-down terminal for GNOME There are a bunch of libvte-based terminals for GTK2, so they are listed in the another section. Also, while this ... 4c67b4 Note about color differences: a) RGB axes are not orthogonal, so you cannot use sqrt(R^2+G^2+B