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Syntax
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Linux / Unix main page About tail Delivers the last part of the file. Syntax tail [+ number] [-l] [-b] [-c] [-r] [-f] [-c number | -n number] [file]
| +number | |
| -l | Units of lines. |
| -b | Units of blocks. |
| -c | Units of bytes. |
| -r | Reverse. Copies lines from the specified starting point in the file in reverse order. The default for r is to print the entire file in reverse order. |
| -f | Follow. If the input-file is not a pipe, the program will not terminate after the line of the input-file has been copied, but will enter an endless loop, wherein it sleeps for a second and then attempts to read and copy further records from the input-file. Thus it may be used to monitor the growth of a file that is being written by some other process. |
| -c number | The number option-argument must be a decimal integer whose sign affects the location in the file, measured in bytes, to begin the copying:
| + | Copying starts relative to the beginning of the file. |
| - | Copying starts relative to the end of the file. |
| none | Copying starts relative to the end of the file. |
| |
The origin for counting is 1; that is, -c+1 represents the first byte of the file, -c-1 the last. |
| -n number | Equivalent to -c number, except the starting location in the file is measured in lines instead of bytes. The origin for counting is 1; that is, -n+1 represents the first line of the file, -n-1 the last. |
| file | Name of the file you wish to display |
Examples tail myfile.txt The above example would list the last 10 (default) lines of the file myfile.txt. tail myfile.txt -n 100 The above example would list the last 100 lines in the file myfile.txt. Related commands cat
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pg | |
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