How do you delete all lines that contain no letters from the alphabet using either grep, sed, or awk? [closed]

by

With GNU grep:

grep '[[:alpha:]]' file

or GNU sed:

sed '/[[:alpha:]]/!d' file

Output:

0hjjAby68xp
H5e

More Related Contents:

  1. How to show only next line after the matched one?
  2. Convert 11/2/1998 to 110298 [duplicate]
  3. How can I manipulate text in bash? [closed]
  4. substitute words on a line only before first delimeter using sed or awk
  5. Printing with sed or awk a line following a matching pattern
  6. How to merge every two lines into one from the command line?
  7. Extraction of data from a simple XML file
  8. Using multiple delimiters in awk
  9. Print lines in one file matching patterns in another file
  10. Extract lines between two patterns from a file [duplicate]
  11. Grep output with multiple Colors?
  12. How to delete rows from a csv file based on a list values from another file?
  13. How to grep for case insensitive string in a file?
  14. How to print lines between two patterns, inclusive or exclusive (in sed, AWK or Perl)?
  15. How to use sed to replace only the first occurrence in a file?
  16. How do I find the text that matches a pattern?
  17. Why does my tool output overwrite itself and how do I fix it?
  18. sed or awk: delete n lines following a pattern
  19. Assigning system command’s output to variable
  20. Why does “1” in awk print the current line?
  21. Easiest way to extract the urls from an html page using sed or awk only
  22. How can I make awk not use scientific notation when printing small values?
  23. How to remove double-quotes in jq output for parsing json files in bash?
  24. remove ^M characters from file using sed
  25. How to find/replace and increment a matched number with sed/awk?
  26. print unique lines based on field
  27. Using sed and grep/egrep to search and replace
  28. get the user input in awk
  29. Awk replace a column with its hash value
  30. How to preserve the original whitespace between fields in awk?

Leave a Comment