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What is the difference between ls and echo?
echo * just echoes the names of the files and directories in the current directory, ls * lists the names of the files (just like echo * does), but it also lists the contents of the directories instead of just giving their name.
What is the use of ls and echo command?
the terminal displays the output of ls . the shell captures the output of $(ls) and performs word splitting on it. With the default IFS , this means that all sequences of white space, including newline characters, are replaced by a single blank. That is why the output of echo $(ls) appears on one line.
Is it possible to use echo command in place of ls command?
echo then prints a newline, unless the -n option was passed. Thus echo $(ls) shows output like bar foo instead of bar foo . When ls prints multiple files, its output is not likely to be exactly that same as the output of $(ls) .
Why is the output of Echo$ ( LS ) on one line?
echo $(ls) the shell captures the output of $(ls) and performs word splitting on it. With the default IFS, this means that all sequences of white space, including newline characters, are replaced by a single blank. That is why the output of echo $(ls) appears on one line.
Which is better to use, printf or echo?
While printf is better for many reasons, most people still use echo because the syntax is simpler. The main reasons why you should prefer printf are: echo is not standardized, it will behave differently on different systems.
Why does Echo appear on one line in shell?
the shell captures the output of $(ls) and performs word splitting on it. With the default IFS, this means that all sequences of white space, including newline characters, are replaced by a single blank. That is why the output of echo $(ls) appears on one line.
What happens if I lose a newline in Echo?
This normally is not noticeable because, by default, echo adds one newline to the end of its output. So, if you lose one newline from the end of $ (…) and you gain one from echo, there is no change.