From c86216e2612ba236816a5210e50aaa27ef0cad0a Mon Sep 17 00:00:00 2001
From: Daniel Senff <mail@danielsenff.de>
Date: Thu, 12 Mar 2015 09:41:54 +0100
Subject: [PATCH 1/3] Create tr.md

tr is a small utility for translating characters in text documents
---
 pages/common/tr.md | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 pages/common/tr.md

diff --git a/pages/common/tr.md b/pages/common/tr.md
new file mode 100644
index 0000000000..423d1ba65e
--- /dev/null
+++ b/pages/common/tr.md
@@ -0,0 +1,15 @@
+# tr
+
+> translate characters - run replacements based on single characters
+
+- replace all occurrences of a character in a file, and print the result
+
+`tr {{find_character}} {{replace_character}} < {{filename}}`
+
+ Translate the contents of the file to upper-case, prints result.
+
+`tr "[:lower:]" "[:upper:]" < {{filename}}`
+
+Strip out non-printable characters from the file, prints result.
+
+`tr -cd "[:print:]" < {{filename}}`

From 70017a62004c2c2440bda4f209e43e6ac23d6628 Mon Sep 17 00:00:00 2001
From: Daniel Senff <mail@danielsenff.de>
Date: Sat, 14 Mar 2015 12:05:19 +0100
Subject: [PATCH 2/3] add more examples to tr These examples were suggested to
 add and are based from the tr-wikipedia article at
 https://en.wikipedia.org/w/index.php?title=Tr_(Unix)&oldid=631477596

---
 pages/common/tr.md | 22 +++++++++++++++++-----
 1 file changed, 17 insertions(+), 5 deletions(-)

diff --git a/pages/common/tr.md b/pages/common/tr.md
index 423d1ba65e..0a1a3fba1e 100644
--- a/pages/common/tr.md
+++ b/pages/common/tr.md
@@ -1,15 +1,27 @@
 # tr
 
-> translate characters - run replacements based on single characters
+> translate characters - run replacements based on single characters and character sets
 
-- replace all occurrences of a character in a file, and print the result
+- Replace all occurrences of a character in a file, and prints the result
 
-`tr {{find_character}} {{replace_character}} < {{filename}}`
+`tr {{find_characters}} {{replace_characters}} < {{filename}}`
 
- Translate the contents of the file to upper-case, prints result.
+- Maps each character of the first set to the corresponding character of the second set.
+
+`tr 'abcd' 'jkmn' < {{filename}}`
+
+- Delete all occurances of the specified set of characters from the input.
+
+`tr -d '{{input_characters}}'`
+
+- Compresses a series of identical characters to a single character.
+
+`tr -s '\n'`
+
+- Translate the contents of the file to upper-case, prints result.
 
 `tr "[:lower:]" "[:upper:]" < {{filename}}`
 
-Strip out non-printable characters from the file, prints result.
+- Strip out non-printable characters from the file, prints result.
 
 `tr -cd "[:print:]" < {{filename}}`

From 7f48d18e12cdc336cac7d8f398697a180016b23e Mon Sep 17 00:00:00 2001
From: Daniel Senff <mail@danielsenff.de>
Date: Sat, 14 Mar 2015 16:34:38 +0100
Subject: [PATCH 3/3] common verb conjugation for all tr command descriptions

---
 pages/common/tr.md | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/pages/common/tr.md b/pages/common/tr.md
index 0a1a3fba1e..6e2317e6f6 100644
--- a/pages/common/tr.md
+++ b/pages/common/tr.md
@@ -2,11 +2,11 @@
 
 > translate characters - run replacements based on single characters and character sets
 
-- Replace all occurrences of a character in a file, and prints the result
+- Replace all occurrences of a character in a file, and print the result
 
 `tr {{find_characters}} {{replace_characters}} < {{filename}}`
 
-- Maps each character of the first set to the corresponding character of the second set.
+- Map each character of the first set to the corresponding character of the second set.
 
 `tr 'abcd' 'jkmn' < {{filename}}`
 
@@ -14,14 +14,14 @@
 
 `tr -d '{{input_characters}}'`
 
-- Compresses a series of identical characters to a single character.
+- Compress a series of identical characters to a single character.
 
 `tr -s '\n'`
 
-- Translate the contents of the file to upper-case, prints result.
+- Translate the contents of the file to upper-case and print result.
 
 `tr "[:lower:]" "[:upper:]" < {{filename}}`
 
-- Strip out non-printable characters from the file, prints result.
+- Strip out non-printable characters from the file and print result.
 
 `tr -cd "[:print:]" < {{filename}}`