Bash Scripting

A set of shell scripts that wrangle a US COVID-19 vaccine dataset, vaccine_data_us.csv, from the command line. Each treats the file as a stream of comma-separated lines and composes standard Unix filters through pipes.

top10.sh builds a Markdown table of the ten states with the most doses administered. It keeps the All-vaccine-type rows, projects the Province_State and Doses_admin columns with cut -d ,, sorts them numerically in descending order, and takes the first ten (sed -n '/All/p' | cut -d , -f2,10 | sort -t ',' -k 2 -nr | head -n 10), then wraps each field in pipe characters to form the table rows.

summarize.sh is a small documentation tool that emits each .sh, .c, or .h file it is given inside a fenced Markdown code block. It uses sed to strip the shebang and the leading header comment, and selects the language by a regular expression match on the file extension. Between them the two scripts cover involved reporting tasks without a single hand-written loop over the data.