From f5178ed1e419cfae7679ae8b4d3130ef48abfbfd Mon Sep 17 00:00:00 2001
From: Johannes Stoelp <johannes.stoelp@gmail.com>
Date: Tue, 27 Aug 2024 22:31:37 +0200
Subject: cli: add tac, paste

---
 src/cli/README.md |  2 ++
 src/cli/paste.md  | 22 ++++++++++++++++++++++
 src/cli/tac.md    | 12 ++++++++++++
 3 files changed, 36 insertions(+)
 create mode 100644 src/cli/paste.md
 create mode 100644 src/cli/tac.md

(limited to 'src/cli')

diff --git a/src/cli/README.md b/src/cli/README.md
index 2625899..5eac7cb 100644
--- a/src/cli/README.md
+++ b/src/cli/README.md
@@ -5,3 +5,5 @@
 - [column](./column.md)
 - [sort](./sort.md)
 - [tr](./tr.md)
+- [tac](./tac.md)
+- [paste](./paste.md)
diff --git a/src/cli/paste.md b/src/cli/paste.md
new file mode 100644
index 0000000..114002c
--- /dev/null
+++ b/src/cli/paste.md
@@ -0,0 +1,22 @@
+# paste(1)
+
+```
+# Concatenate input files linewise and join them by a TAB char.
+
+paste FILE [FILE]
+    -d CHAR     delimiter to join each line
+```
+
+# Examples
+
+```sh
+# Read two files.
+paste <(echo -e 'a1\na2') <(echo -e 'b1\nb2')
+a1	b1
+a2	b2
+
+# Can read from stdin.
+echo -e 'a1 a2\nb1 b2\nc1 c2\nd1 d2' | paste - -
+# a1 a2	b1 b2
+# c1 c2	d1 d2
+```
diff --git a/src/cli/tac.md b/src/cli/tac.md
new file mode 100644
index 0000000..eba42ba
--- /dev/null
+++ b/src/cli/tac.md
@@ -0,0 +1,12 @@
+# tac(1)
+
+```sh
+# Reverse output lines of file(s) and concatenate (reverse of cat).
+tac FILE [FILE]
+
+echo -e 'aa\nbb\ncc\ndd' | tac
+# dd
+# cc
+# bb
+# aa
+```
-- 
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