Bash 我试图将expect脚本回显到文件中，但没有成功

我试图将expect脚本回显到一个文件中，以便可以动态执行它

以下是我到目前为止的情况：

#!/bin/bash

echo '#!/usr/bin/expect -f' > expect_file
echo 'expect "\[RETURN\]" {send "\r"}' >> expect_file

这将生成一个包含以下内容的文件：

#!/usr/bin/expect -f
"}pect "\[RETURN\]" {send "

如果我尝试使用echo和转义引语：

#!/bin/bash

echo '#!/usr/bin/expect -f' > expect_file
echo "expect \"\[RETURN\]\" {send \"\r\"}" >> expect_file

cat expect_file
exit 0

expect命令和部分行不会得到回显

#!/usr/bin/expect -f
"}pect "\[RETURN\]" {send "

如何从bash脚本中回显或将后续代码行单独放入文件中

#!/usr/bin/expect -f
expect "\[RETURN\]" {send "\r"}
expect ":" {send "q"}
expect "otherwise:" {send "y\r"}
expect eof {exit}

---

不要使用回音。使用cat：

cat << 'EOF' > expect_file
#!/usr/bin/expect -f
expect "\[RETURN\]" {send "\r"}
expect ":" {send "q"}
expect "otherwise:" {send "y\r"}
expect eof {exit}
EOF

cat expect\u文件
#!/usr/bin/expect-f
应为“\[RETURN\]”{send”\r}
预期“{send“q”}
预期为“否则：{send“y\r”}
预期eof{exit}
EOF

不要使用echo。使用cat：

cat << 'EOF' > expect_file
#!/usr/bin/expect -f
expect "\[RETURN\]" {send "\r"}
expect ":" {send "q"}
expect "otherwise:" {send "y\r"}
expect eof {exit}
EOF

cat expect\u文件
#!/usr/bin/expect-f
应为“\[RETURN\]”{send”\r}
预期“{send“q”}
预期为“否则：{send“y\r”}
预期eof{exit}
EOF

使用echo

#!/bin/bash
echo -e '#!/usr/bin/expect -f\nexpect "\\[RETURN\\]" {send "\\r"}\nexpect ":" {send "q"}\nexpect "otherwise:" {send "y\\r"}\nexpect eof {exit}' > expect_file

或

#!/bin/bash
echo '#!/usr/bin/expect -f
expect "\[RETURN\]" {send "\r"}
expect ":" {send "q"}
expect "otherwise:" {send "y\r"}
expect eof {exit}' > expect_file

#!/bin/bash
echo '#!/usr/bin/expect -f' > expect_file
echo 'expect "\[RETURN\]" {send "\r"}' >> expect_file
echo 'expect ":" {send "q"}' >> expect_file
echo 'expect "otherwise:" {send "y\r"}' >> expect_file
echo 'expect eof {exit}' >> expect_file

或

#!/bin/bash
echo '#!/usr/bin/expect -f
expect "\[RETURN\]" {send "\r"}
expect ":" {send "q"}
expect "otherwise:" {send "y\r"}
expect eof {exit}' > expect_file

#!/bin/bash
echo '#!/usr/bin/expect -f' > expect_file
echo 'expect "\[RETURN\]" {send "\r"}' >> expect_file
echo 'expect ":" {send "q"}' >> expect_file
echo 'expect "otherwise:" {send "y\r"}' >> expect_file
echo 'expect eof {exit}' >> expect_file

---

使用echo

#!/bin/bash
echo -e '#!/usr/bin/expect -f\nexpect "\\[RETURN\\]" {send "\\r"}\nexpect ":" {send "q"}\nexpect "otherwise:" {send "y\\r"}\nexpect eof {exit}' > expect_file

或

#!/bin/bash
echo '#!/usr/bin/expect -f
expect "\[RETURN\]" {send "\r"}
expect ":" {send "q"}
expect "otherwise:" {send "y\r"}
expect eof {exit}' > expect_file

#!/bin/bash
echo '#!/usr/bin/expect -f' > expect_file
echo 'expect "\[RETURN\]" {send "\r"}' >> expect_file
echo 'expect ":" {send "q"}' >> expect_file
echo 'expect "otherwise:" {send "y\r"}' >> expect_file
echo 'expect eof {exit}' >> expect_file

或

#!/bin/bash
echo '#!/usr/bin/expect -f
expect "\[RETURN\]" {send "\r"}
expect ":" {send "q"}
expect "otherwise:" {send "y\r"}
expect eof {exit}' > expect_file

#!/bin/bash
echo '#!/usr/bin/expect -f' > expect_file
echo 'expect "\[RETURN\]" {send "\r"}' >> expect_file
echo 'expect ":" {send "q"}' >> expect_file
echo 'expect "otherwise:" {send "y\r"}' >> expect_file
echo 'expect eof {exit}' >> expect_file

---

您确定正在使用

bash

执行脚本吗？该结果与兼容POSIX的

echo

实现一致，其中

echo

的参数中的

\r

被视为文本回车。如果使用

cat

显示结果文件，则最终的

“}

将出现在行的开头。是否确实使用

bash

执行脚本？该结果与兼容POSIX的

echo

实现一致，其中

echo

的参数中的

\r

被视为文本回车。如果用

cat

显示结果文件，则最后的

“}

将出现在行的开头。正确。效果很好。谢谢。正确。效果很好。谢谢。我也喜欢第二个示例。我也喜欢第二个示例。