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September 21, 2019 00:02
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passh, that is: sshpass -d {anonymous pipe from executing $1 with args from the rest of argv}
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#!/usr/bin/env bash | |
# Created by Michał Krzysztof Feiler in September 2019 | |
# Desired usage example: | |
# ./passh.sh \; ssh user@host \; pass stdout path/of/passfile | |
# ( this example uses https://github.com/mkf/pass-stdout ) | |
# ( this script aims to serve this example. so far it is a failure. please help. ) | |
shopt -s expand_aliases | |
alias narg='[ "$#" -eq 0 ]' | |
if narg; then | |
>&2 echo 'Lacking arguments. First argument is supposed to be the delimiter, such as "\;".' | |
exit 1; fi | |
DELIMITER="$1"; shift | |
alias delim='[ "$1" == "$DELIMITER" ]' | |
if narg || delim; then | |
>&2 echo 'Lacking the result command. It is supposed to be the first, delimited by the delimiters.' | |
exit 1; fi | |
RESULT_COMMAND=("$1"); shift | |
until narg || delim; do | |
RESULT_COMMAND+=("$1"); shift; done; delim && shift | |
if narg || delim; then | |
>&2 echo 'Lacking the password source command. It is supposed to be the second, delimited by the delimiters.' | |
exit 1; fi | |
SOURCE_COMMAND=("$1"); shift | |
until narg || delim; do | |
SOURCE_COMMAND+=("$1"); shift; done; delim && shift | |
SSHPASS_PARAMS=("sshpass") | |
if ! narg; then | |
SSHPASS_PARAMS=("$1") | |
until narg || delim; do | |
SSHPASS_ARGS+=("$1"); shift; done; delim && shift | |
if ! narg; then | |
>&2 echo "The following actual parameters do not match any of the formal positional parameters of this script:" | |
(( eae=0 )); until narg; do (( eae++ )) | |
>&2 echo "$eae" "$1"; shift; done | |
fi; fi | |
coproc THE_SOURCE { "${SOURCE_COMMAND[@]}" | head -n 1 ; } | |
exec "${SSHPASS_PARAMS[0]}" -d "${THE_SOURCE[1]}" "${SSHPASS_PARAMS[@]:1}" "${RESULT_COMMAND[@]}" |
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