Unix and Linux more command also displays the content of a file. Difference between is that, in case of larger files, ‘cat’ command output will scroll off your screen while ‘more’ command displays. Output one screen full at a time.
Now we can used in ‘more’ command to scroll the page :
1.Press Enter key to scroll down page line by line.
2.Space bar to go to next page.
3.b key to go to the backward page.
4./ key let’s you search the string.
Sample Syntax of more command :
# more <file name>
Like example of more command :
Look at the above snapshot, in the left corner it shows 2%, which indicates that 2% page is displayed.
If you scroll down use ‘space’ button, next page will be displayed. If you want to go to the last or backward page use ‘b’ key.
Here: The ‘more’ command can’t be used to display binary files.
Linux more options
1.more -num Limits the line displayed per page.
2.more –d Displays user message at right corner.
3.more –s Squeeze blank lines.
4.more +/string name It helps to find the string.
5.more +num Used to display the content from a specific line.
Linux less command
Unix or Linux system ‘less’ command is same as ‘more’ command but include some more features.
sample syntax of less command :
# less <file name>
Like example of less command :
# less /var/log/syslog
See, we have given the command “less /var/log/syslog”. The file left corner, name of the file is displayed.
Linux to Find A String
The Linux system particular string is searched by typing forward slash (/) and then followed by the string name, at place of file name in the lower left corner of the terminal box.
Sample syntax of find command :
Like example of find command :
See, we want to find string ‘add’ hence we have typed “/add” at the lower left corner.
shows the output of command “/add”. The string ‘add’ will be automatically highlighted.
less Command Navigation Keys
The Unix and Linux system less command have navigation keys similar to the vim editor. Now you have a look on some of the navigation keys and other operations of less command.
Search navigation keys will help you in forward and backward search.
1./ : search for a pattern for the next occurence
2.n : search for next match
3.N : search for previous match
1.? : search for a pattern for the next occurence
2.n : for next match in backward direction
3.N : for previous match in forward direction
1.Forward : /\/home\/sssit\/
2.Backward : /home/sssit
1.Ctrl + f : forwards one window
2.Ctrl + d : forwards half window
3.Ctrl + b : backwards one window
4.Ctrl + u : backwards half window
to move forward or backward line by line
1.j : forward by one line
2.k : backward by one line
1.G : used to go to end of the file
2.g : used to go to start of the file
3.q or ZZ : to exit
1.10j : 10 lines forward
2.10k : 10 lines backward
1.ma : mark current position with letter ‘a’
2.a : go to marked position
by passing arguments in the same line
less file1 file2
while viewing file1 go to file2
to navigate between files when more then two files are opened
1.n : go to next file
2.p : go to previous file