How do I print a specific line in Linux?

How do I print a specific line using sed?

In this article of sed series, we will see how to print a particular line using the print(p) command of sed. Similarly, to print a particular line, put the line number before ‘p’. $ indicates the last line.

How do I search for a specific line in Linux?

To do this, go to Edit -> Preferences and tick the box that says “Display line numbers.” You can also jump to a specific line number by using Ctrl + I .

How do I print a single line output in Unix?

You can insert $(command) (new style) or `command` (old style) to insert the output of a command into a double-quoted string. echo “Welcome $(whoami)!” Note: In a script this will work fine. If you try it at an interactive command line the final !

How do I print a specific field in Unix?

How to do it…

  1. To print the fifth column, use the following command: $ awk ‘{ print $5 }’ filename.
  2. We can also print multiple columns and insert our custom string in between columns. For example, to print the permission and filename of each file in the current directory, use the following set of commands:
IT IS INTERESTING:  Quick Answer: How do I open multiple shells in Linux?

How do you print a specific line in Python?

Use enumerate() to assign index values to each line in the file and print the specific lines

  1. file = open(“sample.txt”)
  2. lines_to_print = [0, 2]
  3. for index, line in enumerate(file):
  4. if ( index in lines_to_print):
  5. print(line)
  6. file.

How do I grep a specific line number in Linux?

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.

How do I select a specific line in a file in Unix?

To extract a range of lines, say lines 2 to 4, you can execute either of the following:

  1. $ sed -n 2,4p somefile. txt.
  2. $ sed ‘2,4! d’ somefile. txt.

How do I grep a particular line?

The grep command searches through the file, looking for matches to the pattern specified. To use it type grep , then the pattern we’re searching for and finally the name of the file (or files) we’re searching in. The output is the three lines in the file that contain the letters ‘not’.

How do I display the 10th line of a file?

Below are three great ways to get the nth line of a file in Linux.

  1. head / tail. Simply using the combination of the head and tail commands is probably the easiest approach. …
  2. sed. There are a couple of nice ways to do this with sed . …
  3. awk. awk has a built in variable NR that keeps track of file/stream row numbers.

How do I print a 4th line in Unix?

Sed Address Format 5: NUMBER,$

IT IS INTERESTING:  What is Uname Ubuntu?

N,$ with “p” command prints from Nth line to end of file. For example 4,$p prints from 4th line to end of file.

How do I print two lines in Linux?

First, the line containing the pattern /Linux/ is found. The command within the braces will run on the pattern found. {N;p} means read the next line and print the pattern space which now contains the current and the next line. Similarly, to print 2 lines, you can simply put: {N;N;p}.