Quick scripts to find the longest line in a file. To find the shortest line, just invert the appropriate test.
Gawk
gawk "{ if (length > max) { max = length; m = $0 } } END { print m }" <file>
Gawk + Sort + Tail
gawk "{ printf("""%4.0f %s\n""", length,$0) }" <file> | sort | tail -1
In Windows Cmd, three double-quotes are required to escape a double-quote, and the %4.0f
format control ensures that lines up to 9999 characters long are sorted correctly.
PowerShell
get-content <file> | sort-object -property length | select-object -last 1
WC
wc -L
gives the length of the longest line, but not the line itself.
2008-04-20: Consolidated all samples into this article.
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