A utility tool to replace xargs, written in Go.

This program was designed with the idea of positional arguments.

It will replace positional arguments with input from stdin.

For example:

$ echo "foo bar" | goargs echo :1 :0
bar foo

So, in this example, goargs read foo bar from stdin, and make foo as :0, bar as :1.

That is, foo is the first positional argument, bar is the second, etc.

Then, goargs will replace positional arguments before executing the command.

So goargs echo :1 :0 will become goargs echo bar foo, then echo bar foo was executed and you got the final output.

• :0, :1, :2, ... — Reference fields split by whitespace (0-indexed).
• :@ — Reference the entire line (useful for filenames with spaces).

• -F sep — Use sep as the field separator instead of whitespace.

find . -name '*.go' | goargs wc -l
find . -name '*.go' | goargs mv :0 :0.bak

For filenames with spaces, use :@ to reference the entire line:

echo 'Frame 123.svg' | goargs mv :@ :1.svg
# renames "Frame 123.svg" to "123.svg"

Use -F to split fields by a custom separator (like awk -F):

echo 'a.txt' | goargs -F. mv :@ :0.md
# renames "a.txt" to "a.md"

Another example combining awk with positional fields:

find . -name '*.go' | awk -F/ '{print $1, $2}' | goargs echo :0/:1