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printenv
: Print all or some environment variables
printenv
prints environment variable values. Synopsis:
printenv [option] [variable]... |
If no variables are specified, printenv
prints the value of
every environment variable. Otherwise, it prints the value of each
variable that is set, and nothing for those that are not set.
The only options are a lone `--help' or `--version'. See section 2. Common options.
0 if all variables specified were found 1 if at least one specified variable was not found 2 if a write error occurred |