How to delete from a text file, all lines that contain a specific string?

To remove the line and print the output to standard out:

sed '/pattern to match/d' ./infile

To directly modify the file – does not work with BSD sed:

sed -i '/pattern to match/d' ./infile

Same, but for BSD sed (Mac OS X and FreeBSD) – does not work with GNU sed:

sed -i '' '/pattern to match/d' ./infile

To directly modify the file (and create a backup) – works with BSD and GNU sed:

sed -i.bak '/pattern to match/d' ./infile

Related Posts:

  1. sed whole word search and replace
  2. Meaning of “! -S” in shell script
  3. “No such file or directory” but it exists
  4. How do I split a string on a delimiter in Bash?
  5. Ubuntu says “bash: ./program Permission denied” [closed]
  6. Should I put #! (shebang) in Python scripts, and what form should it take?
  7. Should I put #! (shebang) in Python scripts, and what form should it take?
  8. How do I copy a folder from remote to local using scp?
  9. How to concatenate string variables in Bash
  10. -bash: syntax error near unexpected token `)’
  11. How to grep for case insensitive string in a file?
  12. An example of how to use getopts in bash
  13. How to mkdir only if a directory does not already exist?
  14. How do I iterate over a range of numbers defined by variables in Bash?
  15. How to set ssh timeout?
  16. commands not found on zsh
  17. sudo: apt-get: command not found
  18. How do I iterate over a range of numbers defined by variables in Bash?
  19. Why do people write #!/usr/bin/env python on the first line of a Python script?
  20. How to mkdir only if a directory does not already exist?
  21. Using find to locate files that match one of multiple patterns
  22. “unary operator expected” error in Bash if condition
  23. What does “-ne” mean in bash?
  24. “sed” command in bash
  25. Is there a Python equivalent to the ‘which’ command
  26. How to generate random number in Bash?
  27. How to check if a variable is set in Bash?
  28. Who can access a file with octal permissions “000” on Linux/UNIX?
  29. How can I compare numbers in Bash?
  30. What does the line “#!/bin/sh” mean in a UNIX shell script?
  31. Open and write data to text file using Bash?
  32. How to remove the quotes when reading a variable in jq in shell?
  33. How do I set a variable to the output of a command in Bash?
  34. python getoutput() equivalent in subprocess
  35. What is the $? (dollar question mark) variable in shell scripting?
  36. Is there a TRY CATCH command in Bash
  37. dquote> result of a execution a program in linux shell
  38. Using sudo with Python script
  39. how to fix the issue “Command /bin/sh failed with exit code 1” in iphone
  40. Run a string as a command within a Bash script
  41. conditional binary operator expected in shell script
  42. Block Comments in a Shell Script
  43. How to use sed to extract substring
  44. How to get a shell environment variable in a makefile?
  45. What are the uses of the exec command in shell scripts? 
  46. using rot13 and tr command for having an encrypted email address
  47. Shell Script: Execute a python program from within a shell script
  48. What’s the difference betwen the single dash and double dash flags on shell commands?
  49. How to let ‘cp’ command don’t fire an error when source file does not exist?
  50. How do I pause my shell script for a second before continuing?
  51. Python Math – TypeError: ‘NoneType’ object is not subscriptable
  52. In the shell, what does ” 2>&1 ” mean?
  53. subprocess.Popen(): OSError: [Errno 8] Exec format error in python?
  54. How to substitute shell variables in complex text files
  55. How can I recursively find all files in current and subfolders based on wildcard matching?
  56. Curl command for https ( SSL )
  57. How to exclude a directory in find . command
  58. How to exclude a directory in find . command
  59. How to reload .bash_profile from the command line?
  60. What is the purpose of “&&” in a shell command?
  61. Shell Script Syntax Error: Unexpected End of File
  62. How do I split a string on a delimiter in Bash?
  63. adb shell su works but adb root does not
  64. How to remove double-quotes in jq output for parsing json files in bash?
  65. What is a list in Bash?
  66. How can I count all the lines of code in a directory recursively?
  67. How can I kill a process by name instead of PID, on Linux?
  68. Given two directory trees, how can I find out which files differ by content?
  69. adb shell su works but adb root does not
  70. Which characters need to be escaped when using Bash?
  71. Shell script “for” loop syntax
  72. Pseudo-terminal will not be allocated because stdin is not a terminal
  73. screen Cannot open your terminal ‘/dev/pts/0’ – please check
  74. ./configure : /bin/sh^M : bad interpreter
  75. How to convert a string to lower case in Bash?
  76. the ‘d’ command in the sed utility
  77. RE error: illegal byte sequence on Mac OS X
  78. Sorting data based on second column of a file
  79. sed command with -i option failing on Mac, but works on Linux
  80. zip error – Nothing to do
  81. What is the difference between sed and awk?
  82. What does “&” at the end of a linux command mean?
  83. How to sort an array in Bash
  84. Run script on mac prompt “Permission denied”
  85. * failed to open vchiq instance
  86. how to check which version of nltk, scikit learn installed?
  87. How to split one string into multiple strings separated by at least one space in bash shell?
  88. Copy multiple files from one directory to another from Linux shell
  89. execvp: bad address error
  90. How can I do a recursive find/replace of a string with awk or sed?
  91. Using grep and ls -a commands
  92. Running shell command and capturing the output
  93. Simple PowerShell LastWriteTime compare
  94. Can pm2 run an ‘npm start’ script
  95. What is “-bash: !”: event not found”
  96. Colors in bash after piping through less?
  97. How to run command as user who has /usr/sbin/nologin as Shell?
  98. How to display certain lines from a text file in Linux?
  99. Is there a way to do a remote “ls” much like “scp” does a remote copy?
  100. How do I join two named pipes into single input stream in linux

Leave a Comment