From 53209c04be6446849977b70b8e2ffd96c68f6477 Mon Sep 17 00:00:00 2001
From: koolape <59325527+koolape@users.noreply.github.com>
Date: Fri, 14 Oct 2022 18:34:01 +0800
Subject: [PATCH] esearch: add examples (#8997)

---
 pages/linux/esearch.md | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/pages/linux/esearch.md b/pages/linux/esearch.md
index 1c04423ba..55b87216c 100644
--- a/pages/linux/esearch.md
+++ b/pages/linux/esearch.md
@@ -8,6 +8,14 @@
 
 `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`