Questions tagged [select]
`select` is a keyword in the syntax of the Korn shell language (and other Korn-like shells such as `zsh` or `bash`) used to create menus for terminal user interaction. For creating TUI-based menus and other dialogs in shell scripts, see `whiptail`/`dialog` or `zenity` for GUI ones.
35 questions
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Why does a Bash script with select exit without input when reading from stdin?
I'm working on a Bash script that optionally accepts input from stdin and then presents the user with a selection menu using select. The issue arises when the script is provided data via stdin—the ...
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How do I select an array to loop through from an array of arrays?
#!/usr/bin/bash
ARGENT=("Nous devons économiser de l'argent."
"Je dois économiser de l'argent.")
BIENETRE=("Comment vas-tu?" "Tout va bien ?")
aoarrs=("${...
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how to write a commant for output of a particular group?
Reading file prod1.tpr, VERSION 2019.6 (single precision)
Reading file prod1.tpr, VERSION 2019.6 (single precision)
Select a group of reference atoms and a group of molecules to be ordered:
Group ...
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when read buffer size is 2048, it work , but buffer size is 48 or other number, write call will be blocked, why?
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/select.h>
#include <fcntl.h>
#include <unistd.h>
int main(int argc, char* argv[]){
if(...
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select from a constructed list of strings with whitespace?
I trying to create a list of strings with spaces in, that I want to choose between in a select - something like this:
sel=""
while read l
do
sel=$(printf "%s '%s'" "$sel&...
- 779
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Selecting from various media using awk shell script
I have made a simple backup program for my bin folder. It works.
Code and resultant STDOUT below.
Using rsync to copy from local ~/bin folder to a /media/username/code/bin folder. The code works fine ...
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Why plus 1 is needed in select system call?
From man select :
int select(int nfds, fd_set *readfds, fd_set *writefds,
fd_set *exceptfds, struct timeval *timeout);
nfds should be set to the highest-numbered file descriptor in any of ...
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Getting the first/last/nth result from a jq select result
I am trying to find a way to pipe the result of my current script into another command which will leave me with just the last result of the array I get in my select here:
jq -r --arg name "$1&...
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Select command showing options without question
Select command is showing options without displaying question.
It is displaying question after a choice is made.
I have a function as shown below in a script.
function start_AppNode
{
# Define ...
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How to select a word under cursor?
For all text editor or application I'm using, I want to select a word under cursor using keyboard shortcut.
How can I do it?
I tried look around I didn't find anything helpful.
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Bash script selecting folder
I am trying to list all the directory latest modified folder first using select, but I am stuck.
Let's say I have:
Folder1
ThisIsAnotherDir
Directory
New Directory
This IS not_Same Directory
When I ...
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select would indicate pipe is readable when there's no data in pipe and write end is closed?
I am reading The Linux Programming Interface.
From 63.2.3 When Is a File Descriptor Ready?, it says:
Correctly using select() and poll() requires an understanding of
the conditions under which a ...
- 1,257
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Xed : highlight selected text occurences?
I'm using Gnome Xed text editor.
Is there a way to auto select all occurrences of currently selected-text across the document.
If Xed cant do it, what other linux text editor can do it ? How ?
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How to display different directory content with Bash select command?
So far I have found some examples of Bash select function usage with logical constructed options or Asterisk one (i.e select s in *). This last one lists all actual directory content.
So I would like ...
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How to use select to choose from x files, that contain lists, needed to run set of commands against, in this case curl
I have about 100 lists of URLs used for health checking (200, 300,400,500) but cannot figure out the terminology to ask the question. In advance, I apologize.
I want to use a list to choose on of ...
