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I have a problem with echo in my script: 我的脚本中存在echo问题：

echo -n "Some string..."

prints 版画

-n Some string...

and moves to the next line. 并移至下一行。 In the console it's working correcly without newline: 在控制台中，它不需要换行就可以正常工作：

Some string...

#1楼

参考：

#2楼

There are multiple versions of the echo command, with different behaviors. echo命令有多个版本，具有不同的行为。 Apparently the shell used for your script uses a version that doesn't recognize -n . 显然，用于脚本的外壳程序使用的版本无法识别-n 。

The printf command has much more consistent behavior. printf命令具有更一致的行为。 echo is fine for simple things like echo hello , but I suggest using printf for anything more complicated. echo适用于诸如echo hello类的简单事情，但我建议将printf用于更复杂的事情。

What system are you on, and what shell does your script use? 您在什么系统上，脚本使用什么外壳？

#3楼

Try with 试试看

echo -e "Some string...\c"

It works for me as expected (as I understood from your question). 正如我从您的问题中了解到的那样，它对我有效。

Note that I got this information from the man page. 请注意，我是从man页获得此信息的。 The man page also notes the shell may have its own version of echo , and I am not sure if bash has its own version. man页还指出，shell可能具有自己的echo版本，并且我不确定bash是否具有自己的版本。

#4楼

bash has a "built-in" command called "echo": bash有一个名为“ echo”的“内置”命令：

$ type echoecho is a shell builtin

Additionally, there is an "echo" command that is a proper executable (that is, the shell forks and execs /bin/echo , as opposed to interpreting echo and executing it): 此外，还有一个“ echo”命令，该命令是适当的可执行文件（即，与解释和执行echo相反，shell派生和execs /bin/echo ）：

$ ls -l /bin/echo-rwxr-xr-x 1 root root 22856 Jul 21  2011 /bin/echo

The behavior of either echo 's WRT to \\c and -n varies. echo的WRT到\\c和-n各不相同。 Your best bet is to use printf , which is available on four different *NIX flavors that I looked at: 最好的选择是使用printf ，它在我看过的四种不同的* NIX风格中可用：

$ printf "a line without trailing linefeed"$ printf "a line with trailing linefeed\n"

#5楼

如果您在if命令中与其他命令（例如“ read”）一起使用echo，则它可能会忽略该设置，并且无论如何都会跳到新行。

#6楼

Just for the Ubuntu & it's bash : 仅适用于 Ubuntu ＆ bash ：

1. Check which shell are you using? 检查您使用的是哪个外壳？ Mostly below works, else : 大多在下面的作品，否则 ：

   echo $0

2. If above prints bash , then below will work: 如果上面打印bash ，那么下面的将起作用：

   printf "hello with no new line printed at end"

   OR 要么
   echo -n "hello with no new line printed at end"

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