Bryan Johnson
3eb88f86c8
Five small Unix-style loop & format helpers, fully offline:
lib/each.sh
- replaces v1 `each`
- run a CMD per item: args, stdin lines, or {}-placeholder substitution
- example: tbn adt | awk '{print $2}' | each.sh 'route_test {}'
lib/each-site.sh
- replaces v1 each_site / each_site_hdr / each_site_tcl patterns
- iterates every site under $HCIROOT with HCISITE/HCISITEDIR auto-exported
- --filter REGEX limits which sites; --hdr prints a header before each
lib/len2nl.sh
- replaces v1 `len2nl`
- strict superset: handles length-prefixed (digits before MSH),
MLLP (\x0b...\x1c\x0d), and segment CRs (→ LF)
- works as stdin filter or with file arg
lib/csv-to-table.sh
- 2-column CSV → Cloverleaf .tbl format
- emits proper prologue (who, date, bidir, type, version)
- --has-header --default VALUE --bidir 0|1 --in-delim CHAR --user NAME --out PATH
lib/table-to-csv.sh
- reverse: .tbl → CSV
- --with-header --delim CHAR --include-meta
- confirmed clean round-trip: CSV → table → CSV byte-identical for the data rows
All 5 are pipeable, have --help, zero external deps beyond bash+awk+sed.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
46 lines
1.2 KiB
Bash
Executable File
46 lines
1.2 KiB
Bash
Executable File
#!/usr/bin/env bash
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# each.sh — run a command for each item. Replaces v1 `each`.
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#
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# Two input modes:
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# each.sh <CMD> <ARG1> [ARG2 ... ARGN] — args as items
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# <stream> | each.sh <CMD> — stdin lines as items (one per line)
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#
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# The literal token {} in CMD, if present, gets replaced with the current item.
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# Otherwise the item is appended as the last arg.
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#
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# Examples:
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# each.sh 'echo got:' /etc/hosts /etc/passwd
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# tbn adt | awk 'NR>1{print $2}' | each.sh 'echo route_test for' {}
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# nc-find.sh --process codametrix --format tsv \
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# | awk -F'\t' 'NR>1{print $2}' \
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# | each.sh 'lib/nc-msgs.sh' {} '--limit' '1' '--format' 'count'
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#
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# Each invocation is a separate process; failures are not aggregated. To
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# stop on first error, prepend `set -e` in your own wrapper.
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set -o pipefail
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usage() { sed -n '2,20p' "$0"; exit 0; }
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[ $# -ge 1 ] || usage
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case "$1" in -h|--help) usage ;; esac
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CMD="$1"; shift
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run_one() {
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local item="$1"
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if [[ "$CMD" == *"{}"* ]]; then
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eval "${CMD//\{\}/\"\$item\"}"
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else
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# Append item as last arg
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eval "$CMD \"\$item\""
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fi
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}
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if [ $# -gt 0 ]; then
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for item in "$@"; do run_one "$item"; done
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else
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while IFS= read -r item; do
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[ -z "$item" ] && continue
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run_one "$item"
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done
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fi
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