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

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

shell sed text-parsing in-place

shell

Bash tool to get nth line from a file

bash shell unix awk sed

shell

Find and replace in file and overwrite file doesn't work, it empties the file

shell unix sed io-redirection

shell

Replace whole line containing a string using Sed

string shell sed

shell

Shell script - remove first and last quote (") from a variable

string bash shell unix sed

shell

Insert line after match using sed

shell sed

shell

Environment variable substitution in sed

linux unix shell sed

shell

Command to get nth line of STDOUT

bash shell sed stdout

shell

How to remove the lines which appear on file B from another file A?

linux shell sed diff grep

shell

How to use sed to remove the last n lines of a file

linux bash shell sed

shell

How can I delete a newline if it is the last character in a file?

linux perl shell awk sed

shell

How to delete duplicate lines in a file without sorting it in Unix?

unix shell scripting sed awk

shell

How do I remove newlines from a text file?

linux bash scripting shell sed

shell

How to insert a newline in front of a pattern?

shell sed

shell

How can I strip first X characters from string using sed?

bash shell sed

shell