The first removes every character from the "#" to the end of the line, and the second deletes all blank lines: sed -e 's/#.*//' -e '/^$/ d' A third one should be added to remove all blanks and tabs immediately before the end of line: sed -e 's/#.*//' -e 's/[...
Holidaymaker Anna O'Neil is nonplussed when her 11-year-old enjoys a kickabout with Lionel Messi in Antigua Anything could happen Actor Adrian Dunbar says his Line of Duty character may yet be the shadowy figure H People ask: Why are you paid so much more than doctors and nurses?... Qu...
interior monologue - a literary genre that presents a fictional character's sequence of thoughts in the form of a monologue stream of consciousness - a literary genre that reveals a character's thoughts and feeling as they develop by means of a long soliloquy prose poem - prose that resembles...
A third one should be added to remove all blanks and tabs immediately before the end of line: sed -e 's/#.*//' -e 's/[ ^I]*$//' -e '/^$/ d' The character "^I" is a CTRL-I or tab character. You would have to explicitly type in the tab. Note the order of operatio...
Type in the sed subcommands that you want to run whenever sed finds a match, then enclose it in curly braces. The following joins two adjacent lines, replaces the newline character with a space, then goes back to the start of the expression: ...
Treat the input as a set of lines, each terminated by a zero byte (the ASCII ‘NUL’ character) instead of a newline. This option can be used with commands like ‘sort -z’ and ‘find -print0’ to process arbitrary file names. ...
Before we can delete empty lines usingsed, we need tobe able to identify them. Empty lines usually refer to lines thatcontain no visible characters, including spaces or tabs. However, we'll define an empty line as a line without any characters in it (besides the line termination character\...
If you need a formal proof of “undetectability”, here’s one: – valid ISO-8859-1 string is always completely valid ISO-8859-2 (or -4, -5) string (they occupy exactly the same spots 0xa1-0xff), e.g. you canneverdetermine if some character not present in another set is actually...
For clarity in documentation, we have used the expression '\t' to indicate a tab character (0x09) in the scripts. However, most versions of sed do not recognize the '\t' abbreviation, so when typing these scripts from the command line, you should press the TAB key instead. '\t' is...
This use case is more advanced. We’ll only remove comments (#) from a file usingsed: This command says that if#appears as a line’s first character, to replace that line with blank space. As a result, this command does the job of removing the comments from the file. ...