Linux & Shell

5 guides

Log parsing, permissions and shell scripting for SRE and platform interviews.

Linux shell scripting interview guideThe shell skills SRE and platform interviews test.Linux and shell8 min readWith code example Linux log parsingParsing and aggregating logs with standard tools.Linux and shell8 min readWith code example Linux file permissionsOwners, modes, umask and the permission bugs that break deployments.Linux and shell8 min readWith code example Shell CSV processingProcessing CSV safely in the shell: quoting, delimiters and edge cases.Linux and shell8 min readWith code example Bash script hardeningset -euo pipefail, quoting and failure handling in production scripts.Linux and shell8 min readWith code example