cli-sedHow can I use sed command line options to modify text files?
The sed
command line tool can be used to modify text files. It works by reading a file line-by-line and applying a set of operations on each line that matches a given pattern.
For example, the following code will replace all occurrences of the word hello
with goodbye
in the file hello.txt
:
sed 's/hello/goodbye/g' hello.txt
The code consists of the following parts:
sed
: Thesed
command line tool.s/hello/goodbye/g
: Thes
stands for substitution,hello
is the pattern to be replaced,goodbye
is the replacement, andg
stands for global, meaning all occurrences of the pattern should be replaced.hello.txt
: The file to be modified.
For more information about the sed
command line tool, see the following resources:
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See more codes...