# If you'd like to omit non-matching lines from the result; add ';d' to the end of the expression.
sed -E 's/(?:AT\+CIMI|AT\+CPIN|AT\+QCCID|AT\+QSIMSTAT) (?:.+) (\d\d)//gm;t' <<< "6 Network Service Commands .......................................................................................................... 74
6.1. AT+COPS Operator Selection ............................................................................................ 74
6.2. AT+CREG Network Registration ........................................................................................ 76
6.3. AT+CSQ Signal Quality Report .......................................................................................... 78
6.4. AT+CPOL Preferred Operator List ...................................................................................... 79
6.5. AT+COPN Read Operator Names ...................................................................................... 81
6.6. AT+CTZU Automatic Time Zone Update ............................................................................ 81
6.7. AT+CTZR Time Zone Reporting ......................................................................................... 82
6.8. AT+QLTS Obtain the Latest Time Synchronized Through Network .................................... 84
6.9. AT+QNWINFO Query Network Information ........................................................................ 85
6.10. AT+QSPN Display the Name of Registered Network ......................................................... 87"
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for SED, please visit: https://www.gnu.org/software/sed/manual/html_node/The-_0022s_0022-Command.html