Rf: Created page with "* Try the command: grep "^DE" hsy14768.embl and grep -x "DE." hsy14768.embl What are the `^` symbol and the `-x` parameter in these commands doing? *..."

2017-04-19T22:37:54Z

Created page with "* Try the command: grep "^DE" hsy14768.embl and grep -x "DE.*" hsy14768.embl * What are the <code>^</code> symbol and the <code>-x</code> parameter in these commands doing? *..."

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* Try the command:
grep "^DE" hsy14768.embl and grep -x "DE.*" hsy14768.embl
* What are the <code>^</code> symbol and the <code>-x</code> 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 <code>></code>.
* request for redirection of output to a file, rather than as a character to look for.
* As before, the <code>^ </code>symbol means "match only at the beginning of the line".

Hdi2u S22 - Revision history

Rf: Created page with "* Try the command: grep "^DE" hsy14768.embl and grep -x "DE.*" hsy14768.embl * What are the ^ symbol and the -x parameter in these commands doing? *..."

Rf: Created page with "* Try the command: grep "^DE" hsy14768.embl and grep -x "DE." hsy14768.embl What are the `^` symbol and the `-x` parameter in these commands doing? *..."