dev(shell): implement basic shell tools

fixed(file-system): fixed read and write bugs

1 files changed, 0 insertions, 189 deletions

diff --git a/build/user/echo.sym b/build/user/echo.sym
deleted file mode 100644
index 005bc74..0000000
--- a/build/user/echo.sym
+++ /dev/null
@@ -1,189 +0,0 @@
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