Shell Data Processing - Echo

Card Puncher Data Processing

Shell Data Processing - Echo

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Echo is a command that accepts an argument as standard input, and echoes it back to the terminal as standard output.

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Card Puncher Data Processing
Shell Data Processing - Cat command (short for concatenate)

cat is a core utility that generates a stream of data from one or more files (ie file descriptor) It therefore can: concatenate files. read any file (or file descriptor ie tcp connection, ...) ...



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