diff

Compare files line by line.

Synopsis

tofu diff <file1> <file2> [flags]

Description

Compare two files and show differences with optional color output. Uses a unified diff format by default.

Flags

Flag	Short	Description	Default
--unified	-u	Output NUM lines of unified context	3
--context	-c	Output NUM lines of context	0
--side-by-side	-y	Output in two columns side by side	false
--width	-W	Output at most NUM columns (side-by-side)	130
--color		Color output: auto, always, never	auto
--no-color		Disable color output	false
--brief	-q	Report only when files differ	false
--ignore-case	-i	Ignore case differences	false
--ignore-space	-b	Ignore changes in whitespace	false
--ignore-blank	-B	Ignore blank lines	false
--stats	-s	Show statistics summary	false

Examples

Compare two files:

tofu diff old.txt new.txt

Side-by-side comparison:

tofu diff -y old.txt new.txt

Brief mode (just report if different):

tofu diff -q file1.txt file2.txt

Ignore whitespace changes:

tofu diff -b file1.txt file2.txt

Ignore case:

tofu diff -i file1.txt file2.txt

Show more context:

tofu diff -u 5 old.txt new.txt

Show statistics:

tofu diff -s old.txt new.txt
# Output includes: 5 insertion(s), 3 deletion(s)

No color output:

tofu diff --no-color old.txt new.txt

Sample Output

--- old.txt
+++ new.txt
@@ -1,4 +1,4 @@
 Line 1
-Line 2 old
+Line 2 new
 Line 3
 Line 4