我有以下 Bash 代码:
function suman {
if test "$#" -eq "0"; then
echo " [suman] using suman-shell instead of suman executable.";
suman-shell "$@"
else
echo "we do something else here"
fi
}
function suman-shell {
if [ -z "$LOCAL_SUMAN" ]; then
local -a node_exec_args=( )
handle_global_suman node_exec_args "$@"
else
NODE_PATH="${NEW_NODE_PATH}" PATH="${NEW_PATH}" node "$LOCAL_SUMAN" --suman-shell "$@";
fi
}
当suman
用户在不带参数的情况下执行命令时,会出现以下情况:
echo " [suman] using suman-shell instead of suman executable.";
suman-shell "$@"
我的问题是 - 如何将参数附加到“$@”值?我需要简单地做类似的事情:
handle_global_suman node_exec_args "--suman-shell $@"
显然这是错误的,但我不知道该怎么做。我是什么不是寻找 -
handle_global_suman node_exec_args "$@" --suman-shell
问题是它与and一起handle_global_suman
工作,如果我进入,那么我必须更改其他代码,并且宁愿避免这种情况。$1
$2
--suman-shell
$3
初步回答:
local args=("$@")
args+=("--suman-shell")
if [ -z "$LOCAL_SUMAN" ]; then
echo " => No local Suman executable could be found, given the present working directory => $PWD"
echo " => Warning...attempting to run a globally installed version of Suman..."
local -a node_exec_args=( )
handle_global_suman node_exec_args "${args[@]}"
else
NODE_PATH="${NEW_NODE_PATH}" PATH="${NEW_PATH}" node "$LOCAL_SUMAN" "${args[@]}";
fi
答案1
将参数放入数组中,然后追加到数组中。
args=("$@")
args+=(foo)
args+=(bar)
baz "${args[@]}"
答案2
无需求助于数组 - 您可以使用以下方法自行操作参数set --
:
$ manipulateArgs() {
set -- 'my prefix' "$@" 'my suffix'
for i in "$@"; do echo "$i"; done
}
$ manipulateArgs 'the middle'
my prefix
the middle
my suffix
答案3
handle_global_suman node_exec_args --suman-shell "$@"