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12
votes
2answers
434 views

What does CTRL+4 (and CTRL+\) do in bash?

I just found out by accident that CTRL + 4 closes programs reading stdin input from the command-line. This is how it looks when I type CTRL + 4 or CTRL + / into programs reading stdin ryvnf:~$ ...
6
votes
1answer
87 views

Extra output on input redirection

I have a folder with three files: $ ls a b c If I pipe the output of ls to wc, I get the right result: $ ls | wc -l 3 However, when I specify the input to wc as the output of ls, I get extra ...
0
votes
2answers
34 views

Interactively remove files in loop with standard input redirection

I need to interactively (i.e. rm -i) remove files stored in variable $to_remove (one path per line). Unfortunately my code doesn't work because standard input is already used by redirection ...
-1
votes
1answer
30 views

Is there a Linux keylogger which records the timestamp at which every input was given? If not how would one go about doing this?

In the end I want it so that I have a list of time steps which record, at each time step, what key was pressed (or what was the last key pressed in the given interval). I'm not sure such software ...
2
votes
3answers
40 views

How do I remap newline and carriage return regardless of the terminal used to connect?

All my configuration is stored in my github account (https://github.com/mnebuerquo/dotfiles) so I can just clone my repo and run my install script and my home is configured to use all my tools. I ...
1
vote
0answers
30 views

Ubuntu 14.04 - Multiple Griffin Technology Powermate Knobs

I am running Ubuntu 14.04, and I want to run multiple griffin powermate knobs: https://store.griffintechnology.com/powermate. I want to map them to different keys other than audio control. I want to ...
3
votes
0answers
43 views

Cannot use keyboard within Qt app without sudo

I have an embedded Qt application crosscompiled that runs on BeagleBone Black. It works Ok, but one thing- It doesnt accept keyboard input if i wont run in directly on BeagleBone Black preceeding with ...
1
vote
0answers
14 views

Application started in /etc/X11/xdm/Xsetup can't receive key presses

I'm using xdm (and I'd like to keep it that way) for a project and I need a terminal to run a script before the login prompt. The script requires some user input, however, it doesn't seem to work. ...
1
vote
0answers
26 views

Make X11 react on “dev/input/eventx”?

I have a debian 7 on kernel 3.8 running with a touchscreen. With evtest, I see that I get the screen's coordinates for device "dev/input/event2". How do I have to configurate my X server, that the ...
-2
votes
2answers
57 views

Enter a variable into a command in bash

My question should be simple for you guys. I am writing a simple script that runs a command but the file it would need is always different. Is there a way for it to ask: "Where is the file?" And ...
0
votes
1answer
97 views

How to clear log files periodically

Hi I am new to Shell script. i want to clear log files in a directory basing on the dates. I have managed to gather this code: DIR1='/home/u01/app/oracle/servers/DIR1/logs' ...
1
vote
2answers
25 views

How to input Chinese (JCK) in console without X running

Is it possible at all to input JCK languages (Traditional Chinese in my case) in the console without having X-windows running? All the help I have found online for Chinese input assume that X and ...
1
vote
1answer
46 views

Running a program and providing input

I have a program that runs from the command line. As soon as it runs, it asks for a text value and expects the return key to be pressed after that. Is that possible to create a bash script that runs ...
0
votes
1answer
123 views

predetermine script input text

I have a script that automatically sets up an emailing server based off what I enter for the following echo "Please enter your main domain: (Ex.: website.com)" read DOMINIO if [ $DOMINIO = "" ]; then ...
2
votes
0answers
33 views

manipulate multiple windows simultaneously

this is probably a long shot but I've been pondering it for a while. I realize that the actual use-cases of this sort of interaction are quite sparse. The main uses I can think of would be moving ...
1
vote
0answers
24 views

Is it Possible to use Mouse Movement in a Shortcut?

I'm interested in creating shortcut keys that use mouse movement as part of their trigger to send a keycode, for example so that I could have a shortcut like: ctrl + alt + [mouse movement down] ...
1
vote
0answers
94 views

How to get the mouse/keyboard raw events?

I want to intercept the raw events from the keyboard (or the mouse, eventually). I tried to use the /dev/input/[...] files, they are very practical and I can read the events of any key even caps lock ...
3
votes
2answers
83 views

When does cat finish reading from a pipe?

Given the following code, why does cat only print the contents of the pipe after I've typed \n or CTRL+D? What are the conditions for cat to actually print what it read? #include <stdio.h> ...
1
vote
0answers
193 views

USB bar code scanner not working on Raspbian

My USB bar code scanner (SYMBOL LS2208) is recognized as a HID. hid-generic 0003:05E0:0600.000F: hiddev0,hidraw0: USB HID v1.10 Device [\xffffffef\xffffffbe\xffffffa9\xffffffbe\xffffffa9Symbol ...
-1
votes
1answer
77 views

Accessing array elements within process substitution bash

I've got a text file which looks like this: b4238ca2-cb8d-11e4-8731-1681e6b88ec1,https,username,password,ipaddress b4238f0e-cb8d-11e4-8731-1681e6b88ec1,https,username,password,ipaddress ...
1
vote
0answers
62 views

How many bytes can a keypress return? And should a metafied key return more?

I've been tooling around w/ this input reader lately. Currently it only prints a report to stdout for each key pressed while it runs, but I would like to graduate it to a higher purpose sooner than ...
2
votes
4answers
97 views

input file stream to command

How is it possible to send a file stream to this command instead of a file? /usr/local/bin/wkhtmltopdf --title "$SUBJECT" -q $SOURCEFILE $OUTPUTFILE The file stream is from a string in PHP.
1
vote
0answers
91 views

Mapping two joysticks with Xorg

I already managed to map the input of a joystick to keyboard inputs by writing a file in my xorg.conf.d/ directory (the file is named 51-joystick.conf). Now I would like to map the inputs of a second ...
-2
votes
1answer
41 views

Using 'grep' to search for a specific pattern [duplicate]

I'm playing with the Linux terminal and I have to do a exercise which states that I have to find inside a file for any line that contains at least an a, b and c, it doesn't matter it the lane has 2 a, ...
0
votes
0answers
23 views

printf>stdin unusable with read [duplicate]

With read, sending "a" to stdin is not equivalent to pressing "a" (or use your favorite letter/key). Tested this: ~$ read -n1 & fg [1] 11620 read Then "typed" "a" into the read process stdin ...
0
votes
0answers
34 views

Input event for trackpad co-ordinates

I am making an app that requires the co-ordinates of the touch / swipe of the user. This is currently available only if you are running a VM ( Alt + F2/3/4/5...) using evtest. What do you think is ...
2
votes
0answers
45 views

How to capture a keyboard shortcut

I need a script, that will run in terminal (under X11), and wait for a keyboard shortcut (happening anywhere in the desktop environment), once that shortcut (or key press sequence) happens, it will ...
0
votes
1answer
346 views

How to make a Wacom tablet stylus slower (less sensitive)

The pointer moves too fast (demonstration video) when I use the tablet in relative mode after I run xsetwacom set "Wacom Bamboo stylus" Mode Relative However, xsetwacom --list parameters does not ...
0
votes
0answers
20 views

Compose plus apostrophe doesn't work with Cyrillic

I used to have a custom .XCompose, I removed it to possibly eliminate the cause. Unfortunately, the problem persists - I can't create an accented Cyrillic character, such as the ones here [1]. Simply ...
1
vote
1answer
31 views

Why is 2 of every 10 keystrokes in X11 missing? [closed]

When I enter 1234567890 two numbers in sequence are missing. E.g. 12567890 (missing 34). What causes this?
1
vote
3answers
353 views

How to send input in a new terminal using Shell Script

I found out how to automatically send input to a C program using Shell Script. For example, if I compile this C program: //test.c int main() } int x; printf("Please enter an integer:"); ...
1
vote
1answer
57 views

How to write short alpha using the compose key

I'd like to enter a short alpha using the compose key: ᾰ. I tried using compose+U+α but this doesn't work. Neither does using b instead of U. How can I enter the short alpha using the compose key?
3
votes
1answer
143 views

Problem with getting interactive input in while read loop

I was doing something like the following minimal example: #! /bin/sh # $1 = file containing list of files to sync # $2 = source dir ; $3 = target dir cat "$1" | while read f do cp -i "$2"/"$f" ...
0
votes
0answers
27 views

Programatically capturing application inputs and outputs

I've been given a mess of applications that all touch various common files and data sources. (Retail IT environment so lots of generic sources of data that gets sliced and diced into various ways and ...
1
vote
1answer
90 views

Opensuse 13.1 Gnome Desktop Region&Language won"t open after installing ibus

i want to be able to write Kanji on my Opensuse system, so i followed this tutorial: http://www.localizingjapan.com/blog/2013/11/20/japanese-input-on-opensuse-linux-13-1-kde/ It does not work, ...
2
votes
0answers
150 views

Synaptics touchpad LED support

How to enable support the LED in Synaptics touchpads? I'm using Debian Jessie and xserver-xorg-input-synaptics ver. 1.8.1-1. I found patches by Takashi Iwai from SUSE for LED support in Synaptics ...
2
votes
2answers
139 views

Is there a way to execute commands while getting user input?

I’m fairly new to scripting and I have a high-level question of how to do something. I want to design a simple game similar to space invaders, with these two main features for now: Bullets drop ...
0
votes
1answer
126 views

Using ARGV to get user input in Awk script [closed]

I know ARGV[i] can be used for storing user input. However, I want to use it in awk script and get the ARGV[i] to compare the field from another text file. If the ARGV[i] matches the field or the ...
0
votes
2answers
240 views

Bash Script using read needs to stop executing on Ctrl+D

I need to write a script that will add a line to a text file if Enter is pressed. But, if Ctrl+D is pressed, I need to exit that loop in the bash. touch texttest.txt LINE="0" while true; do read ...
3
votes
0answers
118 views

Ignore brief mouse click/releases

The switch contacts in my mouse are going, and rather than open it up yet again and clean them or try to hunt down a replacement switch (or buy a new mouse) I would like to solve this problem via ...
1
vote
1answer
92 views

Prevent the mouse to wake up display

I set my displays to sleep with xset dpms force off after locking the screen with kscreenlock. This is great, the displays wake up when the mouse is moved (by me, air, the cat). I'd like to set it in ...
2
votes
1answer
136 views

Command-line editing and wrapping

When entering long queries into the command-line psql, my terminal[1] is not wrapping the input line correctly. Additional charactes wrap back to the left of the screen, but on the same line as the ...
1
vote
2answers
616 views

Pass a command to ROOT from a shell script and having it stay open

I am writing a bash script to perform some analysis using the program ROOT. I want to run some initial command to load the result of the analysis, then continue using ROOT interactively. The analysis ...
2
votes
2answers
351 views

How to clear the input in Bash

I have a bash script that is reading quite a bit of data /dev/random. I need the user to type randomly to seed the random daemon. However once the script completes everything typed will get dumped to ...
0
votes
1answer
723 views

psmouse sync issues!

I have Compaq CQ61-420US (64-bit AMD) laptop with Synaptics touchpad checked using $ egrep -i 'synap' /proc/bus/input/devices N: Name="SynPS/2 Synaptics TouchPad" But recently after Arch Linux ...
1
vote
0answers
250 views

How to use a PS gamepad with OpenWRT?

I'm fairly new to OpenWRT and Linux in general so please bare with me. I'm trying to print the button presses from a playstation gamepad to the console on an Arduino Yun which has OpenWRT. I've used ...
1
vote
1answer
222 views

How to read characters from a serial keyboard on /dev/inputs/eventX (Speed?)

I'm trying to read from a second keyboard whose inputs can be read from /dev/inputs/eventX, but I get rubbish and not the character expected. I'm accessing my target by using Putty. I can connect to ...
2
votes
2answers
172 views

Grabbing keyboard control in shell script

I have a certain shell (zsh) script which reads one character at a time and performs an action afterwards. In the shell, this is realized by "read -k" in a loop. I want to execute the script as a ...
12
votes
2answers
2k views

Record every keystroke and store in a file

I need to record every keystroke and store in a file in the user directory ~, when using my account, I am not sudoer and I cannot install programs (like logKeys) in any way. How could I do so using ...
2
votes
1answer
330 views

Program only sees 1 input device

I have a program (advancemame) running on Raspian (Raspberry Pi) which like most programs gets its input from the keyboard. I'm using a program which implements uinput to convert GPIO pins HI/LOW ...