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30 lines
780 B
Bash
Executable File
30 lines
780 B
Bash
Executable File
#!/bin/bash
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# Check if input and output files are provided
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if [ $# -ne 2 ]; then
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echo "Usage: $0 input_file.txt output_file.txt"
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exit 1
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fi
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# Check if the input file exists
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if [ ! -f "$1" ]; then
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echo "Error: File '$1' not found"
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exit 1
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fi
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# Store output file name
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output_file="$2"
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# Clear output file at the beginning
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> "$output_file"
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# Process file using a pipeline of specialized tools
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# 1. tr - remove non-alphabetic chars except newlines
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# 2. tr - convert to uppercase
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# 3. grep - filter by length (5-8 characters)
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# 4. sort - sort the words alphabetically
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# 5. uniq - remove duplicates
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tr -cd 'a-zA-Z\n' < "$1" | tr '[:lower:]' '[:upper:]' | grep -x '.\{5,8\}' | sort | uniq > "$output_file"
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echo "Processing complete. Results saved to '$output_file'"
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