29 lines
449 B
Bash
Executable File
29 lines
449 B
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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if [[ $# -lt 1 ]]; then
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echo "Usage: $0 <jsonl-file> [max-bytes-per-file]" >&2
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exit 1
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fi
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FILE="$1"
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MAX_BYTES="${2:-1048576}"
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if [[ ! -f "$FILE" ]]; then
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echo "error: file not found: $FILE" >&2
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exit 1
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fi
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SIZE=$(wc -c < "$FILE")
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if [[ "$SIZE" -le "$MAX_BYTES" ]]; then
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cat "$FILE"
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exit 0
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fi
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HALF=$(( MAX_BYTES / 2 ))
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head -c "$HALF" "$FILE"
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printf '\n...TRUNCATED...\n'
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tail -c "$HALF" "$FILE"
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