To look at the last few lines of a file, use the tail command. tail works the same way as head: type tail and the filename to see the last 10 lines of that file, or type tail -number filename to see the last number lines of the file.
How do you find the nth line in Linux?
Below are three great ways to get the nth line of a file in Linux.
- head / tail. Simply using the combination of the head and tail commands is probably the easiest approach. …
- sed. There are a couple of nice ways to do this with sed . …
- awk. awk has a built in variable NR that keeps track of file/stream row numbers.
How do I find the pattern of a file in Linux?
The grep command can search for a string in groups of files. When it finds a pattern that matches in more than one file, it prints the name of the file, followed by a colon, then the line matching the pattern.
How do I print the first 10 lines of a file in Linux?
Type the following head command to display first 10 lines of a file named “bar.txt”:
- head -10 bar.txt.
- head -20 bar.txt.
- sed -n 1,10p /etc/group.
- sed -n 1,20p /etc/group.
- awk ‘FNR <= 10’ /etc/passwd.
- awk ‘FNR <= 20’ /etc/passwd.
- perl -ne’1..10 and print’ /etc/passwd.
- perl -ne’1..20 and print’ /etc/passwd.
How do I display a line from a text file in Linux?
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 you find the nth term of a line in Unix?
All you have to do to get the n-th word from the line isissue the following command:cut –f<n> -d’ ”-d’ switch tells [cut] about what is the delimiter (or separator) in the file, which is space ‘ ‘ in this case. Ifthe separator was comma, we could have written -d’,’ then.
Which command is used to display the content of the file?
You can also use the cat command to display the contents of one or more files on your screen. Combining the cat command with the pg command allows you to read the contents of a file one full screen at a time. You can also display the contents of files by using input and output redirection.
What are the different ways of setting file permissions?
File Permission Modes
- Absolute Mode – Use numbers to represent file permissions. When you change permissions by using the absolute mode, you represent permissions for each triplet by an octal mode number. …
- Symbolic Mode – Use combinations of letters and symbols to add permissions or remove permissions.
How do I use find in Linux?
The find command is used to search and locate the list of files and directories based on conditions you specify for files that match the arguments. find command can be used in a variety of conditions like you can find files by permissions, users, groups, file types, date, size, and other possible criteria.
How do I list the first 10 files in Linux?
The ls command even has options for that. To list files on as few lines as possible, you can use –format=comma to separate file names with commas as in this command: $ ls –format=comma 1, 10, 11, 12, 124, 13, 14, 15, 16pgs-landscape.