Java: No PC/SC library found on this system on Linux

 If you get "No PC/SC library found on this system" when trying to work with a SmartCard via javax.smartcardio API, then you need to install package libpcsclite1 (or whatever package contains libpcsclite.so.1 library) then you need to do one of the following:

- sudo ln -s /usr/lib/x86_64-linux-gnu/libpcsclite.so.1 /usr/local/lib64/libpcsclite.so

- sudo ln -s /usr/lib/x86_64-linux-gnu/libpcsclite.so.1 /usr/lib64/libpcsclite.so

libpcsclite.so.1 is located in /usr/lib/x86_64-linux-gnu on my system.

If you are using 32-bit system then you do one of the following:

- sudo ln -s LOCATION_OF_libpcsclite.so.1 /usr/local/lib/libpcsclite.so

- sudo ln -s LOCATION_OF_libpcsclite.so.1 /usr/lib/libpcsclite.so

If you are on SunOS then one of the following:

- sudo ln -s LOCATION_OF_libpcsclite.so.1 /usr/local/lib/64/libpcsclite.so

- sudo ln -s LOCATION_OF_libpcsclite.so.1 /usr/lib/64/libpcsclite.so

Maybe libpcsclite.so.1 has a different name on SunOS. I don't have access to one, so I'm not sure.

System tray not visible in i3

If you are running i3 on Ubuntu GNOME and icons in system tray are not visible then uninstall indicator-application package. This was suggested to me: https://github.com/regolith-linux/regolith-desktop/issues/181#issuecomment-569958512

Sort on open/save dialog in Google Chrome on Ubuntu

If you want the sort to work so that the directories are displayed first you have to do the following:
- sudo apt install dconf-editor
- dconf-editor
- go to org - gtk - settings and set sort-directories-first to true

You can also set sort-column and sort-order there.

XFCE4 reset panels

xfce4-panel --quit ; pkill xfconfd ; rm -rf ~/.config/xfce4/panel ~/.config/xfce4/xfconf/xfce-perchannel-xml/xfce4-panel.xml ; xfce4-panel;

DB2 Terminate LOAD

What tables are in Load Pending State:
SELECT TABSCHEMA, TABNAME, LOAD_STATUS FROM SYSIBMADM.ADMINTABINFO WHERE LOAD_STATUS = 'PENDING'
How to get TABSCHEMA.TABNAME table out of Load Pending State:
db2 "LOAD FROM /dev/null OF DEL TERMINATE INTO TABSCHEMA.TABNAME NONRECOVERABLE"
db2 "SET INTEGRITY FOR TABSCHEMA.TABNAME IMMEDIATE CHECKED"

DB2 LOAD from CURSOR

You can do a LOAD from CURSOR in command line. Example is taken from Fast and easy data movement using DB2's LOAD FROM CURSOR feature:

db2 "DECLARE C1 CURSOR FOR SELECT * FROM FECHNER.SALES"
db2 "LOAD FROM C1 OF CURSOR MESSAGES C:\load_sales_tmp.msg INSERT INTO FECHNER.SALES_TMP NONRECOVERABLE"

How to tell Maven to disregard SSL errors (and trusting all certs)?

Answer at StackOverflow and copied here if it gets removed:
You can disable SSL certificate checking by adding one or more of these command line parameters:

-Dmaven.wagon.http.ssl.insecure=true - enable use of relaxed SSL check for user generated certificates.
-Dmaven.wagon.http.ssl.allowall=true - enable match of the server's X.509 certificate with hostname. If disabled, a browser like check will be used.
-Dmaven.wagon.http.ssl.ignore.validity.dates=true - ignore issues with certificate dates.

Official documentation: http://maven.apache.org/wagon/wagon-providers/wagon-http/

Here's the oneliner for an easy copy-and-paste:
-Dmaven.wagon.http.ssl.insecure=true -Dmaven.wagon.http.ssl.allowall=true -Dmaven.wagon.http.ssl.ignore.validity.dates=true