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Questions tagged [echo]

Simple function outputting text. Exists in script languages.

echo is mainly used in batch (cmd). An example would be:

echo hello world

which prints "hello world" to the terminal.

The output by default prints directly to the command line, however, it may be piped into a following command as an input. This can be very handy and allows for interoperability between different processes/languages.

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Not able to execute echo within legacy in Shell scripting

Below is my code and I am able to get the ssh connection. But after that it is doing nothing. log_time="date +%F\%T" PR_ONE="username@hostname" file="/home/log.txt" to_list="myemail" echo "`$log_time`" >> $file `ssh $PR_ONE "echo df -hP | grep fs1 |…
zeewagon
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Can an echo program in Clojure be built with lazy infinite sequences?

Take the following program as an example: (defn echo-ints [] (doseq [i (->> (BufferedReader. *in*) (line-seq) (map read-string) (take-while integer?))] (println i))) The idea is to prompt the…
Sebastian Oberhoff
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What's the difference between two usages of 
 tag?

Consider below code : '; a("Peter"); ''; ?> Output : array(2) { [0]=> array(4) { ["file"]=> string(40)…
user9059272
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How can I account for when the user inputs nothing to Alexa after this.emit(":ask", speech)?

I'm writing a game for Alexa but the user input is required. If there is no answer, then the game should end with a unique message of the user's score. Currently, I have the Alexa prompting the user like this. this.emit(":ask", speech); However,…
Hyunrae Kim
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Amazon Alexa Music Routine

I just picked up an Amazon Echo Dot for christmas, and I wanted to be able to start a routine on christmas morning, where it would play christmas music and turn on the lights, currently you can only make routines in the app like turn on smart home…
Pete The Petster12 Palmeri
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echo one before the last table row from my database

this is my code that echo last table row . and i wanna echo one before the last table row together with this code . any body can help ? i use this to show table parameters in my application $conn = new mysqli(DB_HOST, DB_USER, DB_PASS,…
user8976812
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NPM command to drop mongo database, using "echo" not working

I'm trying to create an npm command that drops a database from my mongo instance. When I paste this line of code directly into my shell, it works, and gives the output below: > echo 'db.dropDatabase()' | mongo musicappdb MongoDB shell version…
CodyBugstein
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How to extract and use data values from an open $_SESSION

My page accepts users through invitation codes to take surveys using UCCASS, and inspecting the session data goes as follows: print_r($_SESSION); [invite_code_type] => alphanumeric [invite_code_length] => 10 [priv] => Array ( [37] =>…
Ramses Velasco
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PHP echo $array[$i] not showing anything

I have the following PHP (Version 5.3.0) code: $URL = "http://www.example.com/"; IF ($URL != "") try { $curl = curl_init(); curl_setopt ($curl, CURLOPT_URL, $URL); curl_setopt ($curl, CURLOPT_RETURNTRANSFER, true); $html =…
Timothée HENRY
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Does Nim have output buffering?

Do I have to flush output when I'm using Nim's echo like I do with Python's print? If yes, how can I do that?
Adrien
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Prevent echo from adding new line

Imagine I have a folder/file structure like the following a/b/c_d.e a/b/d.f I want to mangle the filename so that path separators become _, and between the folder and file is a -, and then that is prepended to the folder…
Red Riding Hood
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What is the difference between print_r and echo when providing results to an AJAX call?

Although I have found some discussion about the general differences between echo and print_r() in PHP (for example, What's the difference between echo, print, and print_r in PHP?), all the tutorials and answers I've come across for AJAX calls say…
tim.rohrer
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Streaming printing with PHP

I've written a PHP script that makes a request to a search engine, accesses the served results, extracts some details from the results and then prints them in a more useful form. It all works well, but something I've discovered by accident is that…
orlade
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put a name value inside the div id

here is the BUTTON from the index.php to open the Modal form;
Marvin Acosta
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Two newlines in one echo command

Simply put, I've set a most basic text progress indicator in a Windows XP/Windows 7 batch file that writes just after a command line tool's output while it works, because it doesn't look like it does anything for a bit. I do so by piping the blurb…
Zandro
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