Print Lines in a File From a Specific Line Number Until the End of the File with sed

If you know that you want all of the lines in a given file from n to EOF the following is the sed command:

sed -n '3,$p' some_file.txt

To print out lines 2 – 5 simply modify it to:

sed -n '2,5p' some_file.txt

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Removing The Last N Character From a String in Bash Script with sed

Here is a quick one-liner for trimming a specific number of characters from the end of a string under bash:

# Remove the last 5 characters
$ echo "somestringwith12345" | sed "s/.....$//g"
$ somestringwith

# Remove the last 3 characters
$ echo "somestringwith12345" | sed "s/...$//g"
$ somestringwith12
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