Bash - Administration Examples

administration.md

To be added to https://github.com/subfission/Bash-Tips-Tricks when finished.

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Bash Tips and Tricks for Administative Work

Commands oriented to administrative workflows. Placeholders: <ip>, <user>, <port>, <file>, <iface>, <mac>, <domain>, <dns_server>, <pid>, <pattern>, <processname>.

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SECTIONS: Hardware Management ·

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Hardware Management

Inspect lsusb info with many attached devices

Command ends when you press return.

diff <(lsusb) <(read; lsusb)

Send files from memory into vim for editing using process substitution, rather than sourcing from HD.

Example usage could be for making a TLS certificate chain, manually reviewing, and then storing in a location of your choosing.

vim <(cat file1 file2)

Using process substitution for performing sorted differential comparisons of files

diff <(sort file1) <(sort file2)

Using process substitution for performing differential comparisons of a file after a temporary edit.

Example could be when editing config files and validating what would be changed, without changing the file.

diff file1 <(sed s/on/#off/I file1)

Monitor a process execution and direct error logs to both a file and system out

./example_executable > >(less) 2> >(tee errorlog.txt)