n so that's what this number is here, we're in the first shell.
带包壳层,The,n,designates,the,shell,它的数在这里,我们在第一层。
J: the number of jobs currently managed by the shell.
当前shell中的进程数。
A great number of shell features affect how the command name you type is interpreted.
大量的Shell特性可以影响到如何解释您所输入的命令名。
许多shell脚本。
许多shell脚本。
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