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- terminal
- to issue specific commands to your terminal. This can be related to switching colors or positioning the cursor, i.e. anything that can't be done by the application itself. ===== How ... acter-sequence, but will perform some action. You can print the codes with a simple ''echo'' command. ... tly - use the ''tput'' command!** All codes that can be used with ''tput'' can be found in terminfo(5)
- netdata
- fig curl jq nodejs </panel> You can install the latest release of netdata, using your... OS X Linux one liner For all Linux systems, you can use this one liner to install the git version of
- ffmpeg
- /ffmpeg.org/ffmpeg-filters.html#avectorscope. One can play with zoom and other options to produce desir
- truecolor @terminal
- (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 the same t... ort when it is actually supported. App developers can freely choose to check for this same variable, or... e reliable method in an interactive program which can read terminal responses, and one that is transpar
- scripting @terminal
- Avoid them if possible. They only make trouble. I can imagine one case where they're useful: Indenting ... you use for the first time are **empty**, anybody can **inject** content into a variable by passing it ... need to parse a parameter as a list of words, you can't quote, of course, e.g. <code> list="one two thr... oid it, unless absolutely neccesary: * ''eval'' can be your neckshot * there are most likely other
- obselete @terminal
- context, depending on the value of the variable, can yield different results depending on possibly unc... es of files in the current working directory. You can't get globbing without word-splitting, or vice ve... ). [[http://mywiki.wooledge.org/BashFAQ/050 | You can't store a command or character-delimited list in ... is makes some sense, because future compatibility can't be guaranteed, and any compatibility at all, re
- color @terminal
- (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 the same t... ort when it is actually supported. App developers can freely choose to check for this same variable, or... e reliable method in an interactive program which can read terminal responses, and one that is transpar
- behaviours @terminal
- at `cd' will fail if no valid directory name can be constructed from any of the entries in `$... the `echo' builtin to be fully conformant. Bash can be configured to be POSIX-conformant by default, ... t breaks in POSIX(r) mode! __**The POSIX(r) mode can be switched on by:**__ * Bash starting as ''sh'... e following restrictions: * the ''cd'' command can't be used to change directories * the variables
- basics @terminal
- ll script usually resides inside a file. The file can be executable, but you can call a Bash script with that filename as a parameter: <code> bash ./myfile ... but by **permissions** (filemode). The file name can be any combination of legal filename characters. ... must be **the first two bytes** in the file! You can follow the process by using ''echo'' as a fake in
- redirection @scripts
- an error" 1>&2 </code> The redirection operation can be **anywhere** in a simple command, so these exa... mal, ordinary filename from the filesystem (which can of course be a FIFO, too. Simply everything you can reference in the filesystem)| |''&N''|references t... T'' names a regular file that already exists. You can manually override that behaviour by forcing overw
- quoting @scripts
- ial meaning to Bash, like the dollar-sign (''$'') can be masked to not have a special meaning using the... /g' \ -e 's/\&/\\\&/g' } </code> The backslash can be used to mask every character that has a specia... uses a list of words to iterate through. The list can also be in a variable: <code> mylist="DOG CAT BIR
- positional-parameters @scripts
- first argument ===== The very first argument you can access is referenced as ''$0''. It is usually set... ndependent from the positional parameter list. It can be set to anything. In the **ideal** case it's th... this gets set on invocation, the invoking program can easily influence it (the ''login'' program does t... general: ''$N'' will become ''$N-1'' The command can take a number as argument: Number of positions to
- obsolete @scripts
- context, depending on the value of the variable, can yield different results depending on possibly unc... es of files in the current working directory. You can't get globbing without word-splitting, or vice ve... ). [[http://mywiki.wooledge.org/BashFAQ/050 | You can't store a command or character-delimited list in ... is makes some sense, because future compatibility can't be guaranteed, and any compatibility at all, re
- check-script @scripts
- the number of python code lines in the files. We can use it like **./stat.sh <dir>** ==== Create test... ssed. </sxh> Thats all. We wrote one test. You can write more tests if you want. <code> $ ls testsu... 2 passed and 0 failed. Test passed. </code> You can find more **.bashtest** examples in the [[https:/... .com/pahaz/bashtest | bashtest github repo]]. You can also write your question or report a bug [[https:
- ping @php
- ; } else { echo "didn't work"; } ?> </sxh> You can find the original source code at this "Lost in Co... mand from a PHP script As a final option, if you can run the ping command from your command line, you can also just execute it with a PHP ping script, like... mand line, this "PHP exec" example shows how this can work. REF: https://alvinalexander.com/php/php-p