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Code Block
languagebash
titleExample grep commands
# Count the total number of contigs:
grep -c "^>" single_end/contigs.fa



# Determine the length of the 5 largest contigs:
grep "^>" single_end/contigs.fa | head -n 5


# Determine the length of the 20 smallest contigs:
grep "^>" single_end/contigs.fa | tail -n 20


# Determine the length of the 100th through 110th contigs:
grep "^>" single_end/contigs.fa | head -n 110 | tail -n 10

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