Its default value is \t\n A bashism is a shell feature which is only supported in bash and certain other more advanced shells I.e., whitespace, tab, and newline
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Expanding $@ gives you a pristine copy.
The shell treats several parameters specially
These parameters may only be referenced Assignment to them is not allowed Expands to the exit status of the most recently. The above (along with many more forms of ${parameter…something_else} constructs) are discussed at greater length in the shell’s man page, bash(1)
Is there any difference between the following? There are many shell implementations available, like sh, bash, c shell, z shell,. This latter usage is faster, does not contaminate the shell's variable namespace with what amounts to temp variables, can often be a lot more readable for humans and. You can always check the man page of your shell
Special parameters # expands to the number of positional parameters in decimal
Therefore a shell script can check how. There usually shouldn't be a regular program.
