
Scrot Lite Weight Screen Shot Software for Linux
by Lewis Loflin
The above was taken with the scrot-feh program below.
Note this works with any Debian type Linux system. To begin install scrot and feh:
~ $ sudo apt-get install scrot feh
Scrot Simple Screenshots for Linux
Scrot is a minimalistic command line screen capturing application. Scrot enables taking screenshots from the CLI (terminal) and offers features such as a user-definable time delay. Unless instructed otherwise, it saves the file in the current working directory.
$ scrot -t 20 -d 5
The above command saves a dated .png file, along with a thumbnail (20% of original), for Web posting. It provides a 5 second delay before capturing in this instance. You can also use standard date and time formatting when saving to a file. e.g.,
$ scrot ~/Pictures/%Y-%m-%d-%T-screenshot.png -t 20 -d 5
The above saves the screenshot in a filename with the current year, month, date, hours, minutes, and seconds to a folder in your home directory called "Pictures" after a delay of 5 seconds. Make sure the directory is actually there!
A Better Way
The following bash file will allow screenshots that will open up the image with feh. The image will be stored in directory /home/pi/sshot along with a thumbnail image. Directory sshot will be created if not present.
In this case I've created a bash script that can be called from a pin board or Linux menu.
A "bin" folder is already mapped into the system on the latest Raspbian/Debian distributions in one's home directory.
The advantage is low system resource use and fast operation. Save as sshot.sh in /home/pi/bin. Open a terminal window in the folder:
~ $ sudo chmod +x sshot.sh
Now the file will execute. Call from terminal or add to menu, etc.
Put in your home bin folder or copy to /usr/local/bin.
#!/bin/bash
# screenshot opened with feh or viewnior picture viewer.
# check if X display is working if not exit.
[ -z ${DISPLAY} ] && echo "Requires X" &&  exit 1
# check for ~/sshot make if not there.
[ -d "$HOME/sshot" ] || mkdir -p "$HOME/sshot"
# to save to directory ~/sshot
#filename=~/sshot/pic_`date "+H%M%S"`.png
filename=~/sshot/pic_`date "+%m%d%H%M%S"`.png
# -d is delay in seconds. 
# -t is thumbnail in percent
scrot -d 3 -t 50  $filename                      
# use feh to display screen shot at reduced size
# -d draws the file name
# -g sets size to no larger than 640x480 or 800x600
feh -g 800x600  $filename
# comment out feh above and use alternate viewer
#viewnior $filename 
exit
Basic Electronics Learning and Projects
- Software and setup:
 - Raspberry Pi Openbox Desktop 2019
 - Setting up Openbox for Raspberry Pi
 
- Main Light Fast Linux Desktops with Openbox, JWM
 - Test Reuse Surplus PC Power Supplies
 - Add WBAR Launch Dock to Raspberry Pi
 - Add MPG123 Terminal Music Player to Raspberry Pi, Linux
 - Basics of Alsamixer Audio Control for Linux
 - Add Solid State Hard Drive to Raspberry Pi
 - Beep a PC Speaker Add Beeper to Raspberry Pi
 - Using FEH Wallpaper Setter Under Linux
 - Scrot Lite Weight Screen Shot Software for Linux
 - Using Light Weight Beaver Text Editor
 - Install Viewnior Image Viewer for Linux
 - Zmixer ALSA Sound Control Tutorial
 - Tutorial Xinitrc Desktop Manager Control for Linux
 - Setup Raspberry Pi Using JWM Window Manager
 
- Live Linux Distro for Using Printer Port with Electronics
 - Using the powerful Rox-Filer system in Linux
 - Use FEH under Linux for a Wallpaper Setter
 - How to create Symbolic links in Linux
 
- Exploring Digital Computer Electronics
 - Hardware
 - Hardware Review Connecting PC Parallel Ports
 - Operation TB6600 Stepper Controller with PC Parallel Port
 - Build or Buy Parallel Port Breakout Board?
 - Build Serial HD44780 LCD Display Connect to Parallel Port
 - Motherboards
 - Presario 1999 CM1001 Gaming Computer Salvage
 - Live Test 2002 VIA EPIA-800 Mini ITX Motherboard
 - Salvage, Test 2012 AAEON EMB-B75A Industrial Motherboard
 
Web site Copyright Lewis Loflin, All rights reserved. 
If using this material on another site, please provide a link back to my site.