From 2ad86113c238a689b7fe7616b991a23feb5e632b Mon Sep 17 00:00:00 2001
From: thomasabishop <thomasabishop@tuta.com>
Date: Thu, 6 Nov 2025 18:43:00 +0000
Subject: [PATCH] content: recent stdout utilities

---
 ..._replace_characters_from_stdout_with_tr.md | 29 +++++++++++++++++++
 zk/Truncate_stdout_with_cut.md                | 23 +++++++++++++++
 2 files changed, 52 insertions(+)
 create mode 100644 zk/Delete_and_replace_characters_from_stdout_with_tr.md
 create mode 100644 zk/Truncate_stdout_with_cut.md

diff --git a/zk/Delete_and_replace_characters_from_stdout_with_tr.md b/zk/Delete_and_replace_characters_from_stdout_with_tr.md
new file mode 100644
index 0000000..fef4441
--- /dev/null
+++ b/zk/Delete_and_replace_characters_from_stdout_with_tr.md
@@ -0,0 +1,29 @@
+---
+tags:
+  - Linux
+  - procedural
+---
+
+# Delete and replace characters from stdout with `tr`
+
+I used the following pattern to remove new lines and blank spaces:
+
+```sh
+tr -ds '\n'  " "
+```
+
+Everything after the flags are considered an array. You can multiply actions on
+the same target or attack two different targets such as is the case with this
+example.
+
+First flag is "delete". In the exsample this deletes new lines. Second flag is
+"squeeze repeats". In the example this removes all repeated spaces.
+
+```sh
+ls | tail | tr -s a z
+
+# zpple.txt
+# pzckzge.json
+```
+
+In this example, squeeze replaces all instances of 'a' with 'z'
diff --git a/zk/Truncate_stdout_with_cut.md b/zk/Truncate_stdout_with_cut.md
new file mode 100644
index 0000000..5571132
--- /dev/null
+++ b/zk/Truncate_stdout_with_cut.md
@@ -0,0 +1,23 @@
+---
+tags:
+  - Linux
+  - procedural
+---
+
+# Truncate stdout with `cut`
+
+Pass in `-c` to truncate characters or `-b` to truncate bytes.
+
+Return the first three characters of "Thomas":
+
+```sh
+echo 'thomas' | cut -c -3
+# tho
+```
+
+Return "Thomas" minus the first three chracters:
+
+```sh
+echo 'thomas' | cut -c 3-
+# omas
+```