bash: ./a.sh: / bin / bash ^ M: bad interpreter: No such file or directory linux script execution error

Method a: vim a.sh after entering a.sh, in the foot mode, execute: set fileformat performed after = unix: x or: wq save the changes. Then you can execute ./a.sh run script.

Method two: direct execution sed -i "s / \ r //" a.sh to convert, and then you can perform ./a.sh run script.

Method three: direct execution dos2unix a.sh to convert, and then you can perform ./a.sh run script. If the failure can add busyboy

dos2unix busyboy a.sh to perform

Original Po Address: https://blog.csdn.net/stpeace/article/details/45604015