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Linux in a Nutshell

This directory of Linux commands is from Linux in a Nutshell, 5th Edition.

Click on any of the 687 commands below to get a description and list of available options. All links in the command summaries point to the online version of the book on Safari Bookshelf.

Buy it now, or read it online on Safari Bookshelf.


seq [options] [first [increment] ] last

Print the numbers from first through last by increment. The default is to print one number per line to standard output. Both first and increment can be omitted and default to 1, but if first is omitted then increment must also be omitted. In other words, if only two numbers are specified, they are taken to be the first and last numbers. The numbers are treated as floating-point.


-f format, --format=format

Write the output using the specified printf floating-point format, which can be one of %e, %f, or %g (the default).


Print help message and exit.

-s string, --separator=string

Use string to separate numbers in the output. Default is newline.

-w, --equal-width

Equalize the width of the numbers by padding with leading zeros. (Use -f for other types of padding.)


Print version information and exit.

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