CAT(1) - General Commands Manual # CAT(1) - General Commands Manual
NAME # cat - concatenate and print files
SYNOPSIS # cat [-benstuv] [file …]
DESCRIPTION # The cat utility reads files sequentially, writing them to the standard output. The file operands are processed in command-line order. If file is a single dash (’-’) or absent, cat reads from the standard input.
The options are as follows:
-b
Number the lines, but don’t count blank lines.
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HEAD(1) - General Commands Manual # HEAD(1) - General Commands Manual
NAME # head - display first few lines of files
SYNOPSIS # head [-‌count | -n count] [file …]
DESCRIPTION # The head utility copies the first count lines of each specified file to the standard output. If no files are named, head copies lines from the standard input. If count is omitted, it defaults to 10.
The options are as follows:
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TAIL(1) - General Commands Manual # TAIL(1) - General Commands Manual
NAME # tail - display the last part of a file
SYNOPSIS # tail [-f | -r] [-b number | -c number | -n number | -‌number] [file …]
DESCRIPTION # The tail utility displays the contents of file or, by default, its standard input, to the standard output.
The display begins at a byte, line, or 512-byte block location in the input.
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