How do you print a range of lines in Linux?
Printing given range of lines using sed
Sed is a stream editor. A stream editor is used to perform basic text transformations on an input stream (a file or input from a pipeline). above is the sed command example to print the range from 5 to 10, out of 1-20 lines. -n option is to print ‘n’ number of lines.
How do you print a few lines in Unix?
Write a bash script to print a particular line from a file
- awk : $>awk ‘{if(NR==LINE_NUMBER) print $0}’ file.txt.
- sed : $>sed -n LINE_NUMBERp file.txt.
- head : $>head -n LINE_NUMBER file.txt | tail -n + LINE_NUMBER Here LINE_NUMBER is, which line number you want to print. Examples: Print a line from single file.
How do I extract a specific line from a file in Unix?
Since we are talking about extracting lines of text from a text file, I will give an special case where you want to extract all lines that match a certain pattern. Will print the [Data] line and the remaining. If you want the text from line1 to the pattern, you type: sed -n ‘1,/Data/p’ myfile.
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. !
What command will print all lines in the file?
Printing Lines from a File using sed
sed “p” command lets us print specific lines based on the line number or regex provided. sed with option -n will suppress automatic printing of pattern buffer/space.
How do I show only certain lines in Linux?
How to Display Specific Lines of a File in Linux Command Line
- Display specific lines using head and tail commands. Print a single specific line. Print specific range of lines.
- Use SED to display specific lines.
- Use AWK to print specific lines from a file.
How do I extract a line from a file?
To extract a range of lines, say lines 2 to 4, you can execute either of the following:
- $ sed -n 2,4p somefile. txt.
- $ sed ‘2,4! d’ somefile. txt.
What is NR in awk command?
NR is a AWK built-in variable and it denotes number of records being processed. Usage : NR can be used in action block represents number of line being processed and if it is used in END it can print number of lines totally processed. Example : Using NR to print line number in a file using AWK.
What is awk Unix command?
Awk is a scripting language used for manipulating data and generating reports. The awk command programming language requires no compiling, and allows the user to use variables, numeric functions, string functions, and logical operators. … Awk is mostly used for pattern scanning and processing.