Swapper the uppercase letter to lower and the opposite

hamdiheb · hamdiheb · commit a69e7b3659d9 · 2026-04-05T13:04:27.000+02:00
diff --git a/shell-pipelines/tr/script-02.sh b/shell-pipelines/tr/script-02.sh
@@ -7,3 +7,4 @@ set -euo pipefail
 # so every Y should be a Z, and every Z should be a Y!
 #
 # TODO: Write a command to output the contents of text.txt with every Y and Z swapped (both upper and lower case).
+cat text.txt | tr 'Z' 'z' | tr 'Y' 'y' | tr 'z' 'Z' | tr 'y' 'Y'

Original file line number	Diff line number	Diff line change
`@@ -7,3 +7,4 @@ set -euo pipefail`
`7`	`7`	`# so every Y should be a Z, and every Z should be a Y!`
`8`	`8`	`#`
`9`	`9`	`# TODO: Write a command to output the contents of text.txt with every Y and Z swapped (both upper and lower case).`
	`10`	`+cat text.txt \| tr 'Z' 'z' \| tr 'Y' 'y' \| tr 'z' 'Z' \| tr 'y' 'Y'`