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grep "^DE" hsy14768.embl and grep -x "DE.*" hsy14768.embl
- What are the
^ symbol and the -x parameter in these commands doing?
- You will need to check the manpage for grep to be sure.
- Move to your home directory and type ls –lR
- Use the above command with a pipe and a grep command to search for files created or modified today.
- List the files in the hdi2u_files directory and use the grep command to look for those containing the
cat *seqs.fasta | grep "^>" | wc -l
- Each sequence in a fasta file starts with a header line that begins with a
>.
- request for redirection of output to a file, rather than as a character to look for.
- As before, the
^ symbol means "match only at the beginning of the line".
