Command tr

delmorallopez · delmorallopez · commit 21ef61d9727f · 2025-11-15T15:08:16.000Z
diff --git a/shell-pipelines/tr/script-01.sh b/shell-pipelines/tr/script-01.sh
@@ -6,3 +6,6 @@ set -euo pipefail
 # The author got feedback that they're using too many exclamation marks (!).
 #
 # TODO: Write a command to output the contents of text.txt with every exclamation mark (!) replaced with a full-stop (.).
+
+tr '!' '.' < text.txt
+
diff --git a/shell-pipelines/tr/script-02.sh b/shell-pipelines/tr/script-02.sh
@@ -7,3 +7,6 @@ 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).
+
+tr 'ZYzy' 'YZyz'< text.txt
+

Original file line number	Diff line number	Diff line change
`@@ -6,3 +6,6 @@ set -euo pipefail`
`6`	`6`	`# The author got feedback that they're using too many exclamation marks (!).`
`7`	`7`	`#`
`8`	`8`	`# TODO: Write a command to output the contents of text.txt with every exclamation mark (!) replaced with a full-stop (.).`
	`9`	`+`
	`10`	`+tr '!' '.' < text.txt`
	`11`	`+`
Original file line number	Diff line number	Diff line change
`@@ -7,3 +7,6 @@ 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`	`+`
	`11`	`+tr 'ZYzy' 'YZyz'< text.txt`
	`12`	`+`