Update cheatsheets

linux/exiqgrep

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+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# exiqgrep
+
+> Perl script offering possibilities to `grep` in the Exim queue output.
+> More information: <https://www.exim.org/exim-html-current/doc/html/spec_html/ch-exim_utilities.html>.
+
+- Match the sender address using a case-insensitive search:
+
+`exiqgrep -f '<{{email@somedomain.com}}>'`
+
+- Match the sender address and display message IDs only:
+
+`exiqgrep -i -f '<{{email@somedomain.com}}>'`
+
+- Match the recipient address:
+
+`exiqgrep -r '{{email@somedomain.com}}'`
+
+- Remove all messages matching the sender address from the queue:
+
+`exiqgrep -i -f '<{{email@somedomain.com}}>' | xargs exim -Mrm`
+
+- Test for bounced messages:
+
+`exiqgrep -f '^<>$'`
+
+- Display the count of bounced messages:
+
+`exiqgrep -c -f '^<>$'`