Grep with the Line Number in Output

The -n ( or --line-number ) option tells grep to show the line number of the lines containing a string that matches a pattern. When this option is used, grep prints the matches to standard output prefixed with the line number. The output below shows us that the matches are found on lines 10423 and 10424.

1. How do I show line numbers in grep?
2. How do you grep 10 lines after a line?
3. How do you grep a line and next line?
4. How do I show line numbers in Unix?
5. How do I grep a word in a directory?
6. How do I grep a line number in Unix?
7. How do you grep multiple lines?
8. How do I grep last 10 lines in Linux?
9. How do you grep two consecutive lines?
10. How do you grep the nth line after a match?
11. How do you use awk?
12. How do you show line numbers?
13. How do I show line numbers in terminal?
14. Which awk command displays the number of lines?

How do I show line numbers in grep?

To Display Line Numbers with grep Matches

When grep prints results with many matches, it comes handy to see the line numbers. Append the -n operator to any grep command to show the line numbers.

How do you grep 10 lines after a line?

For BSD or GNU grep you can use -B num to set how many lines before the match and -A num for the number of lines after the match. If you want the same number of lines before and after you can use -C num . This will show 3 lines before and 3 lines after.

How do you grep a line and next line?

You can use grep with -A n option to print N lines after matching lines. Using -B n option you can print N lines before matching lines. Using -C n option you can print N lines before and after matching lines.

How do I show line numbers in Unix?

To do so:

1. Press the Esc key if you are currently in insert or append mode.
2. Press : (the colon). The cursor should reappear at the lower left corner of the screen next to a : prompt.
3. Enter the following command: set number.
4. A column of sequential line numbers will then appear at the left side of the screen.

How do I grep a word in a directory?

You need the -d skip option added on.

1. Grep is searching inside of files. You can search recursively, as you said, if you want to search files inside of a directory.
2. By default, grep will read all files, and it detects the directories. ...
3. Searching just within the parent directory would be grep -d skip "string" ./*

How do I grep a line number in Unix?

The -n ( or --line-number ) option tells grep to show the line number of the lines containing a string that matches a pattern. When this option is used, grep prints the matches to standard output prefixed with the line number. The output below shows us that the matches are found on lines 10423 and 10424.

How do you grep multiple lines?

The basic grep syntax when searching multiple patterns in a file includes using the grep command followed by strings and the name of the file or its path. The patterns need to be enclosed using single quotes and separated by the pipe symbol. Use the backslash before pipe | for regular expressions.

How do I grep last 10 lines in Linux?

The tail command displays, by default, the last 10 lines of a text file in Linux. This command can be very useful when examining recent activity in log files. In the picture above you can see that the last 10 lines of the /var/log/messages file were displayed. Another option that you will find handy is the -f option.

How do you grep two consecutive lines?

grep -xe'[^|]\+|[^|]\+' : only keep lines containing exactly two fields (ie. the city and food fields), grep -e'|bad food$' : keep only lines ending in |bad food , tr \| \\n : turn pipes back into newlines (nb.

How do you grep the nth line after a match?

Printing ALL lnb ^th lines after regular-expression match:

You can change the 7 to the nth line you want after the search pattern. It then searches for the "group separator" -- and shows the last line before that. Then remove the group separators.

How do you use awk?

awk Scripts

1. Tell the shell which executable to use to run the script.
2. Prepare awk to use the FS field separator variable to read input text with fields separated by colons ( : ).
3. Use the OFS output field separator to tell awk to use colons ( : ) to separate fields in the output.
4. Set a counter to 0 (zero).

How do you show line numbers?

Display line numbers in code

1. On the menu bar, choose Tools > Options. Expand the Text Editor node, and then select either the language you're using or All Languages to turn on line numbers in all languages. ...
2. Select the Line numbers checkbox.

How do I show line numbers in terminal?

Absolute Line Numbers

1. Press the Esc key to switch to command mode.
2. Press : (colon) and the cursor will move at the bottom left corner of the screen. Type set number or set nu and hit Enter . :set number.
3. Line numbers will be displayed at the left side of the screen:

Which awk command displays the number of lines?

NR: NR command keeps a current count of the number of input records. Remember that records are usually lines. Awk command performs the pattern/action statements once for each record in a file. NF: NF command keeps a count of the number of fields within the current input record.