How do I count duplicate lines in Linux? The uniq command has a convenient -c option to count the number of occurrences in the input file. This is precisely what we’re looking for. However, one thing we must keep in mind is that the uniq command with the -c option works only when duplicated lines are adjacent.
How do I get unique lines in Linux?
- Using -c option : It tells the number of times a line was repeated.
- Using -d option : It only prints the repeated lines.
- Using -D option : It also prints only duplicate lines but not one per group.
- Using -u option : It prints only the unique lines.
How do I count lines in Linux? The wc command is used to find the number of lines, characters, words, and bytes of a file. To find the number of lines using wc, we add the -l option. This will give us the total number of lines and the name of the file.
How do I count lines in bash?
- To count the number of lines: -l wc -l myfile.sh.
- To count the number of words: -w wc -w myfile.sh.