sqlite3 echo和'<'管道命令无法按预期工作(sqlite3 echo and '<' piping command not working as expected)

我正在阅读一本SQL书 ，作者正在使用Sqlite3，这很棒，因为没有服务器可以搞乱。

在作者所说的书中输入：

sqlite3 -echo something.db < some.sql

问题是没有任何东西回到终端，甚至没有从'''重定向命令创建的数据库。

有谁知道发生了什么......有这个？

I am reading a SQL book and the author is using Sqlite3, which is awesome because there is not a server to mess with.

In the book the author says to type:

sqlite3 -echo something.db < some.sql

The problem is nothing ever echos out to the terminal nor is there even a database created from the '<' redirection command.

Does anyone know what is going on...with this?

最满意答案

实际上，您显示的命令是从sql dump创建新数据库的正确方法。

你能否展示你的sql文件内容（ cat some.sql ）？ 我可以重现所描述的行为的唯一方法是向sqlite提供一个空的sql文件。

尝试此命令，看看是否可以得到相同的结果：

$ cat <<EOF > test.sql > create table test1 (f1, f2, f3); > insert into test1(f1, f2, f3) values ("foo", "bar", "baz"); > EOF $ sqlite3 -echo test.db < test.sql create table test1 (f1, f2, f3); insert into test1(f1, f2, f3) values ("foo", "bar", "baz"); $ file test.db test.db: SQLite 3.x database

Actually, the command you show IS a proper way of creating a new database from sql dump.

Can you please show your sql file contents (cat some.sql)? The only way I can reproduce the behavior described is by feeding sqlite an empty sql file.

Try this commands and see if you can get the same result:

$ cat <<EOF > test.sql > create table test1 (f1, f2, f3); > insert into test1(f1, f2, f3) values ("foo", "bar", "baz"); > EOF $ sqlite3 -echo test.db < test.sql create table test1 (f1, f2, f3); insert into test1(f1, f2, f3) values ("foo", "bar", "baz"); $ file test.db test.db: SQLite 3.x databasesqlite3 echo和'<'管道命令无法按预期工作(sqlite3 echo and '<' piping command not working as expected)

我正在阅读一本SQL书 ，作者正在使用Sqlite3，这很棒，因为没有服务器可以搞乱。

在作者所说的书中输入：

sqlite3 -echo something.db < some.sql

问题是没有任何东西回到终端，甚至没有从'''重定向命令创建的数据库。

有谁知道发生了什么......有这个？

I am reading a SQL book and the author is using Sqlite3, which is awesome because there is not a server to mess with.

In the book the author says to type:

sqlite3 -echo something.db < some.sql

The problem is nothing ever echos out to the terminal nor is there even a database created from the '<' redirection command.

Does anyone know what is going on...with this?

最满意答案

实际上，您显示的命令是从sql dump创建新数据库的正确方法。

你能否展示你的sql文件内容（ cat some.sql ）？ 我可以重现所描述的行为的唯一方法是向sqlite提供一个空的sql文件。

尝试此命令，看看是否可以得到相同的结果：

$ cat <<EOF > test.sql > create table test1 (f1, f2, f3); > insert into test1(f1, f2, f3) values ("foo", "bar", "baz"); > EOF $ sqlite3 -echo test.db < test.sql create table test1 (f1, f2, f3); insert into test1(f1, f2, f3) values ("foo", "bar", "baz"); $ file test.db test.db: SQLite 3.x database

Actually, the command you show IS a proper way of creating a new database from sql dump.

Can you please show your sql file contents (cat some.sql)? The only way I can reproduce the behavior described is by feeding sqlite an empty sql file.

Try this commands and see if you can get the same result:

$ cat <<EOF > test.sql > create table test1 (f1, f2, f3); > insert into test1(f1, f2, f3) values ("foo", "bar", "baz"); > EOF $ sqlite3 -echo test.db < test.sql create table test1 (f1, f2, f3); insert into test1(f1, f2, f3) values ("foo", "bar", "baz"); $ file test.db test.db: SQLite 3.x database