Beginning at the first line in the file, grep copies a line into a ... following case, grep will print every line that does not contain the string "boo," and ... on each line of the file, and finally there is an optional END{} section of actions that happen after ... wanted to trim a file and only operate on every 3rd line for instance, you could ...
sed-remove-everything-after-first-occurrence-of-character
The command replaces a matching fragment sed remove everything after last occurrence of character 11. Beginning at the first line in the file grep copies a line​ .... Output file # should contain no more than one blank line between lines of text. ... 4th instance in a line sed 's/foo/bar/g' # replaces ALL instances in a line sed 's/\(. ... p;}' SPECIAL APPLICATIONS: # remove nroff overstrikes (char, backspace) ... deletes everything after first blank line # get Usenet/e-mail message body sed '1​ ... 939c2ea5af
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