esearch

Perform a new Entrez search using terms in indexed fields. It is part of the edirect package. More information: https://www.ncbi.nlm.nih.gov/books/NBK179288/.

  • Search the pubmed database for selective serotonin reuptake inhibitor:

esearch -db pubmed -query "selective serotonin reuptake inhibitor"

  • Search the protein database using a query and regexp:

esearch -db protein -query 'Escherichia*'

  • Search the nucleotide database for sequences whose metadata contain insulin and rodents:

esearch -db nuccore -query "insulin [PROT] AND rodents [ORGN]"

  • Display [h]elp:

esearch -h

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