6-x2 echo命令：将指定字符串输出到 STDOUT

1. #!/bin/bash
2. echo ‘aaaaaaa‘
3. echo ‘bbbbbbb‘
4. echo  ccccccc

1. aaaaaaa
2. bbbbbbb
3. ccccccc

1. #!/bin/bash
2. echo -n ‘aaaaaaa‘
3. echo -n ‘bbbbbbb‘
4. echo  ccccccc
5. echo  ddddddd

1. aaaaaaabbbbbbbccccccc
2. ddddddd

1. #!/bin/bash
2. echo ‘aaaa\nbbbb‘
3. echo -e ‘aaaa\nbbbb‘

1. aaaa\nbbbb
2. aaaa
3. bbbb

1. #!/bin/bash
2. echo -e "eeeeeee\c"
3. echo  fffffff

eeeeeeefffffff

注意脚本为：

1. echo -e eeeeeee\c
2. echo  fffffff
   

没有引号

输出为

1. eeeeeeec
2. fffffff
   

\c没有生效