当循环在第一行后中断时猛击

通过@choroba的提示,我找到了$key\u值的正确语法:

key_values=$(docker exec -i tmgnt_vault_1 vault read secret/${tech_login}-terminals/$terminal <<<$terminal)

希望这能帮助其他人。
ssh可能是正在使用stdin的命令。

e、 g.while循环中的ssh导致循环在第一次迭代后退出。

LIST="cid1 10.10.0.1 host1
cid2 10.10.0.2 host1
cid3 10.10.0.3 host2"

# this while loop exits after first iteration
# ssh has eaten rest of stdin
echo "$LIST" |while read -r cid cip chost; do
    echo $cid;
    PSINFO=$(ssh $chost docker exec -i $cid "ps -e -orss=,pid=,args=,cmd=" |grep java );
    echo PSINFO=$PSINFO; 
done; 

</偏差/空 :

# this while loop keeps on running
# ssh directed to take stdin from /dev/null
echo "$LIST" |while read -r cid cip chost; do
    echo $cid;
    PSINFO=$(ssh $chost docker exec -i $cid "ps -e -orss=,pid=,args=,cmd=" </dev/null |grep java );
    echo PSINFO=$PSINFO; 
done;