$ls ascii-table.c avg.txt case-changer.c env-var-set.c functions_ver1.c mph-to-kph.c output.c ascii-table.md avg-with-garbage.txt env-var.c exist.sh functions_ver2.c mph-to-kph_v2.c $gcc output.c -o output $./output A regular message on stdout Also a regular message on stdout An error message on stderr A regular message, printed to fd 1 An error message, printed to fd 2 $cat output.c #define _POSIX_C_SOURCE 200809L #include …
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