Упомянутая синтаксическая ошибка была в этом цикле while [closed]
Я прогнал приведенный ниже код через shellcheck myscript и продолжаю получать эту ошибку. Как я могу это исправить?
****Line 48:
while [ $count - lt 3 ]
^-- SC1009: The mentioned syntax error was in this while loop.
^-- SC1073: Couldn't parse this test expression. Fix to allow more checks.**
^-- SC1076: Trying to do math? Use e.g. [ $((i/2+7)) -ge 18 ].
^-- SC1072: Expected a test operator. Fix any mentioned problems and try again.**
#!/bin/bash
touch.bash_profile
mkdir login.sh
chmod + x login.sh
echo "Enter Your Username."
read user
echo "Enter Your Password."
read pass
# to check blank inputs
if [ -z "$user" ] ||
[ -z "$pass" ]
then
echo 'Inputs cannot be blank. Please retry.'
# Checking entered username and password with actual credentials
# if matched
if [ "$Username" = "Alpha" ] ||
[ "$Password" = "Beta" ] ;
then
pwd
else
# if not matched
count = 1
while [ $count - lt 3 ]
do
if["$Username" != "$user"]
||["$Password" != "$pass"];
then
left = 3 - $count
echo b
-2
задан karel
27 February 2021 в 09:27
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2 ответа
Попробуйте, я думаю, что поток правильный.
#!/bin/bash
# Create the files .bash_profile and login.sh in the current directory making the login.sh executable.
touch .bash_profile
touch login.sh
chmod +x login.sh
# Tell them what needs to be done
echo "This script requires you to enter the Username and Password, you have three tries at it."
# set the count to 0
count=0
while [ $count -lt 3 ] ; do
# Check for Username
echo "Enter Your Username:"
read user
if [ -z "$user" ] ; then
echo "You must enter a Username"
fi
# Check for Password
echo "Enter Your Password:"
read pass
if [ -z "$pass" ] ; then
echo "You must enter a Password"
fi
#checking entered username and password with actual credentials
#if matched $Username and $Password
if [ "$user" = "Alpha" ] && [ "$pass" = "Beta" ] ; then
pwd
exit 0
else
#if not matched
let "count+=1"
echo "This is try number $count "
fi
done
Вывод при запуске и содержимое каталога после.
root@buster-raspi:~/test# ./test.sh
This script requires you to enter the Username and Password, you have three tries at it.
Enter Your Username
test
Enter Your Password
trtet
This is try number 1
Enter Your Username
test
Enter Your Password
rsrseres
This is try number 2
Enter Your Username
dsddsf
Enter Your Password
gfdggdf
This is try number 3
root@buster-raspi:~/test# ./test.sh
This script requires you to enter the Username and Password, you have three tries at it.
Enter Your Username
test
Enter Your Password
You must enter a Password
This is try number 1
Enter Your Username
root@buster-raspi:~/test# ./test.sh
This script requires you to enter the Username and Password, you have three tries at it.
Enter Your Username
Alpha
Enter Your Password
Beta
/root/test
root@buster-raspi:~/test# ls -l
total 4
-rwxr-xr-x 1 root root 0 Feb 26 22:06 login.sh
-rwxr-xr-x 1 root root 927 Feb 26 22:05 test.sh
root@buster-raspi:~/test# ls -l .bash_profile
-rw-r--r-- 1 root root 0 Feb 26 22:11 .bash_profile
-rwxr-xr-x 1 root root 927 Feb 26 22:05 test.sh
1
ответ дан
18 March 2021 в 23:30
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Я предлагаю быть аккуратным и организованным, чтобы писать код. Здесь у вас есть руководство , не обязательное, но хорошее место для начала.
Погуглите руководство gnu, чтобы узнать правильный синтаксис и все такое. Поиск может быть "bash gnu manual constructs", и для меня первый результат - это .
Что касается Вашего кода, и следуя моим предложениям:
#!/bin/bash
touch.bash_profile
mkdir login.sh
chmod + x login.sh
echo "Enter Your Username"
read user
echo "Enter Your Password"
read pass
#to check blank inputs
if [ -z "$user" ] || [ -z "$pass" ]; then
echo 'Inputs cannot be blank. Please re-try.'
#checking entered username and password with actual credentials
#if matched
if [ "$Username" = "Alpha" ] || [ "$Password" = "Beta" ];then
pwd
else
#if not matched
count=1
while [ $count -lt 3 ]; do
if [ "$Username" != "$user" ] || [ "$Password" != "$pass" ]; then
left=$((3 - $count ))
echo b
fi
done
fi
fi
Это передало синтаксис shellcheck.
0
ответ дан
18 March 2021 в 23:30
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