Linux Remove Blank Lines From File

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Linux Remove Blank Lines From File

How to remove blank lines from a file including tab and spaces Ask Question Asked 10 years 1 month ago Modified 10 months ago Viewed 70k times 38 I want to remove all empty lines from a file Even if the line contains spaces or tabs it should also be removed shell command line text processing files Share Improve this question Follow How to remove blank lines from a notepad microsoft dynamics 365 crm. 9 11 lab remove blank lines from file write a program that gets a file name as input the Visual studio code remove blank lines from file regex youtube.

Snippet Remove Blank Lines From Text Alexandru Nedelcu

Usually there are three ways we might like to remove blank lines from a file Remove all blank lines in the file Remove leading blank lines only delete only from the beginning of the file until the first non blank line Remove trailing blank lines only delete lines only after the last non blank line in the file You have to delete specific lines from a text file in Linux terminal. Using commands like rm deletes the entire file and you don't want that here. You can use a text editor like Vim or Nano, enter the file and delete the desired lines. However, this approach is not suitable for automation using bash scripts.

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Linux Remove Blank Lines From File1. Delete Empty Lines Using Grep Command Supported use of shorthand character classes can reduce the grep command to a simple one like: $ grep -v '^ [ [:space:]]*$' i_have_blanks.txt OR $ grep '\S' i_have_blanks.txt To fix a file with blank/empty lines, the above output needs to pass through a temp file before overwriting the original file. How do I remove empty blank including spaces only lines in a file in Unix Linux using the command line contents of file txt Line Text 1 blank 2 AAA 3 blank 4 BBB 5 blank 6 space space space CCC 7 space space 8 DDD output desired 1 AAA 2 BBB 3 space space space CCC 4 DDD linux unix command line interface text parsing Share

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