Add script

shard.sh

@@ -0,0 +1,18 @@
+#!/bin/bash
+
+input_file="diffs_33554432_41943040.jsonl"
+total_lines=8388608
+num_shards=16
+
+lines_per_shard=$((total_lines / num_shards))
+start_line=1
+
+for i in $(seq 1 $num_shards); do
+    end_line=$((start_line + lines_per_shard - 1))
+    start_range=$((start_line + 33554432))
+    end_range=$((end_line + 33554432))
+    output_file="diffs_${start_range}_${end_range}.jsonl"
+    sed -n "${start_line},${end_line}p" $input_file > $output_file
+    start_line=$((end_line + 1))
+done
+