Making diff even better

I was using diff option -y  on Linux to compare two files side by side,  but it did not display the fill width of the window.

diff -W $(( $(tput cols) - 2 )) -y file1 file2 |less

solved it.

It went from being like

javax.net.ssl|AL   |    javax.net.ssl|DE
javax.net.ssl|IN   |    javax.net.ssl|DE
javax.net.ssl|DE   <
javax.net.ssl|DE   <
javax.net.ssl|DE   <
"ClientHello": {        "ClientHello": {

to

javax.net.ssl|ALL|01|main|2021-01-29 16:39:00.297 GMT|Si   |    javax.net.ssl|DEBUG|01|main|2021-01-29 16:39:15.405 GMT|
javax.net.ssl|INFO|01|main|2021-01-29 16:39:00.297 GMT|A   |    javax.net.ssl|DEBUG|01|main|2021-01-29 16:39:15.407 GMT|
javax.net.ssl|DEBUG|01|main|2021-01-29 16:39:00.297 GMT|   <
javax.net.ssl|DEBUG|01|main|2021-01-29 16:39:00.298 GMT|   <
javax.net.ssl|DEBUG|01|main|2021-01-29 16:39:00.299 GMT|   <
"ClientHello": {                                                "ClientHello": {
  "client version"      : "TLSv1.2",                              "client version"      : "TLSv1.2",

diff -W $(( 120))…. used a terminal width of 120 or each section 60 wide.