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- terminal
- ng/terminalcodes? Terminal (control) codes are used to issue specific commands to your terminal. Thi... ct definition. ===== The tput command ===== Because there's a large number of different terminal cont... *you should avoid using the ANSI codes directly - use the ''tput'' command!** All codes that can be used with ''tput'' can be found in terminfo(5). (on Ope
- netdata
- Linux one liner For all Linux systems, you can use this one liner to install the git version of netd
- truecolor @terminal
- at the same time. Truecolor escape codes do not use a color palette. They just specify the color itse... LOR\x1b[0m\n" </code> - or https://raw.githubusercontent.com/JohnMorales/dotfiles/master/colors/24... ; }' </code> Keep in mind that it is possible to use both ';' and ':' as Control Sequence Introducer d... r capability under the name of "RGB". You need to use the "setaf" and "setab" commands to set the foreg
- scripting @terminal
- // code layout and style. No matter which one you use, use it throughout your code (at least don't change it within the same shellscript file); don't change... nfluences a script, it's only for us humans. I'm used to seeing/using indentation of //two space chara... ake trouble. I can imagine one case where they're useful: Indenting [[syntax:redirection#here_documents
- obselete @terminal
- s tolerated by Bash but has few if any legitimate uses. These features exist mostly for Bourne, csh, or... cept maybe code golfers. New scripts should never use them. None of the items on this list are specifie... r form is especially uncommon and should never be used, and the explicit form using separate redirectio... ribute to confusion about the copy descriptor because the syntax is unclear. They also introduce parsin
- color @terminal
- at the same time. Truecolor escape codes do not use a color palette. They just specify the color itse... UECOLOR\x1b[0m\n" </code> - or https://raw.githubusercontent.com/JohnMorales/dotfiles/master/colors/24... ; }' </code> Keep in mind that it is possible to use both ';' and ':' as Control Sequence Introducer d... r capability under the name of "RGB". You need to use the "setaf" and "setab" commands to set the foreg
- behaviours @terminal
- "login shell", Bash reads and sets (executes) the user's profile from ''/etc/profile'' and one of ''~/.... ariable sets that only make sense for the initial user login. That's why all UNIX(r) shells have (shoul... e rc file is to ''source /etc/bashrc'' from every user's ''~/.bashrc''. __**Methods to test for intera... |ENV]] is evaluated and the resulting filename is used as the name of the startup file. After the star
- basics @terminal
- code> If the file is executable, and you want to use it by calling only the script name, the shebang m... d only program output to stdout. This enables the user to decide if they want to see nothing, only the ... e them. When you write a script: * always read user-input from ''stdin'' * always write diagnostic... ===== Variable names ===== It's good practice to use lowercase names for your variables, as shell and
- redirection @scripts
- e. you want to redirect this descriptor, you just use the number: <code> # this executes the cat-comman... or, to point to its current target file, then you use a "''&''" followed by a the descriptor number: <c... akes one or two words as operands. If you have to use operands (e.g. filenames to redirect to) that con... ation (like below in the details descriptions) is used. ^Syntax^Description^ |''FILENAME''|references
- quoting @scripts
- aracter escaping ===== Per-character escaping is useful in on expansions and substitutions. In general... \"$HOME\" </code> * ''\$HOME'' won't expand because it's not in variable-expansion syntax anymore *... om the input stream and thus effectively ignored. Use it to beautify your code: <code> # escapestr_sed(... -e 's/\&/\\\&/g' } </code> The backslash can be used to mask every character that has a special meani
- positional-parameters @scripts
- ves as described above. To get the function name, use ''$FUNCNAME''. ===== Shifting ===== The builtin command ''shift'' is used to change the positional parameter values: * '... ument 4: $4" echo "Argument 5: $5" </code> While useful in another situation, this way is lacks flexib... lue. On every iteration, the ''shift''-command is used to shift the argument list: <code> numargs=$# f
- obsolete @scripts
- s tolerated by Bash but has few if any legitimate uses. These features exist mostly for Bourne, csh, or... cept maybe code golfers. New scripts should never use them. None of the items on this list are specifie... r form is especially uncommon and should never be used, and the explicit form using separate redirectio... ribute to confusion about the copy descriptor because the syntax is unclear. They also introduce parsin
- check-script @scripts
- and check the result. This tutorial shows how-to use [[https://github.com/pahaz/bashtest|bashtest]] to... number of python code lines in the files. We can use it like **./stat.sh <dir>** ==== Create testsuit
- scripts @nimp
- ; //Thanks to Brook Monroe for the suggestion to use Array.join var result = new Array(aString.length
- port @network
- croll 0% 0% khaki;">Conflict</td> <td>Port is in use for multiple applications</td> </tr> </tbody></ta... igned by the IANA and on most systems can only be used by system (or root) processes or by programs executed by privileged users. Ports are used in the TCP [RFC793] to name the ends of logical connections which carry long term co