shell 之 bash 与sh 区别

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在文件的第一行

#!/bin/sh  #!/bin/bash 还是有区别的,如果是sh就认 let的指令,并且会打印出错


chen@chen-ThinkPad-T420:~/rtl8188$ ./test8188.sh
0x001122334455
9
./test8188.sh: 15: ./test8188.sh: let: not found
9

./test8188.sh: 27: [: unexpected operator
is different

./test8188.sh: 27: [: unexpected operator
is different

./test8188.sh: 27: [: unexpected operator
is different

如果是这个开头

#!/bin/bash

正确打印

chen@chen-ThinkPad-T420:~/rtl8188$ ./test8188.sh
0x001122334455
9
10

is different

is different

is different

is different

is different

0 0
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