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- terminal
- ipting/terminalcodes? Terminal (control) codes are used to issue specific commands to your terminal.... intermediate communication layer. The real codes are looked up in a database **for the currently detec... something is unclear! Also the ''tput'' acronyms are usually the ones dedicated for ANSI escapes! I l... stem termcap/terminfo data, and you KNOW that you are using a compatible xterm application, the followi
- ffmpeg
- l allow to upload video, but not only audio. Here are some ffmpeg tricks, how to add interesting video ... he audio sliding from right to left. Again, there are various options to tweak, see here: https://ffmpe
- shortcut @windows
- ====== Here are a few Shift key hacks to boost your productivity in Windows 10 ====== **Ctrl+ Shift ... he keyboard layout when multiple keyboard layouts are available. **Ctrl + Shift + Esc**: Open the Task
- truecolor @terminal
- 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
- scripting @terminal
- 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
- obselete @terminal
- 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
- color @terminal
- 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
- behaviours @terminal
- 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
- basics @terminal
- 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
- redirection @scripts
- kes the shell powerful. The redirection operators are checked whenever a [[syntax:grammar:parser_exec |... be executed]]. Under normal circumstances, there are 3 files open, accessible by the file descriptors ... l is ;-) </wrap> Both, ''stdout'' and ''stderr'' are output file descriptors. Their difference is the ... anywhere** in a simple command, so these examples are equivalent: <code> cat foo.txt bar.txt >new.txt c
- quoting @scripts
- oublequotes single double}} Quoting and escaping are important, as they influence the way Bash acts upon your input. There are three recognized types: * **per-character escap... n results.** Besides these basic variants, there are some special quoting methods (like interpreting A... e quote and ''<nowiki>'</nowiki>'', single quote) are a syntax element that influence parsing. It is no
- positional-parameters @scripts
- o give arguments to your scripts. These arguments are known as **positional parameters**. Some relevant special parameters are described below: ^Parameter(s)^Description^ |''$0... ents. => forget that one ==== Loops ==== There are several ways to loop through the positional param... ional parameters from ''$1'' to the last one used are expanded without any special handling. When the
- obsolete @scripts
- 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
- port @network
- ></h2> <p>According to IANA "The Well Known Ports are assigned by the IANA and on most systems can only... r by programs executed by privileged users. Ports are used in the TCP [RFC793] to name the ends of logi... 1024–49151</span></h2> <p>Only those ports that are commonly used are listed; for full list, refer to the IANA port list.<sup id="cite_ref-IANA_0-3" class