Is echo the same as print?
“echo and print are more or less the same. They are both used to output data to the screen. The differences are small: echo has no return value while print has a return value of 1 so it can be used in expressions. echo can take multiple parameters (although such usage is rare) while print can take one argument.
What is the difference between echo and print in shell script?
echo always exits with a 0 status, and simply prints arguments followed by an end of line character on the standard output, while printf allows for definition of a formatting string and gives a non-zero exit status code upon failure. printf has more control over the output format.
What is difference between $* and $@?
What’s the difference between $@ and $* [duplicate] The $@ holds list of all arguments passed to the script. The $* holds list of all arguments passed to the script.
Should I use echo or printf?
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.
What is the difference between Echo print and Print_r in PHP?
print_r prints human-readable information about a variable, while echo is used only for strings. Echo just gives the value, print_r gives more information about the variable itself, such as the type of data and the elements in the array, if applicable.
What is the difference between $message and $$ message?
$message is used to store variable data. $$message can be used to store variable of a variable. Data stored in $message is fixed while data stored in $$message can be changed dynamically.
Is echo faster than printf?
1. printf is slower than echo, because ‘echo’ (usually) runs as built-in command of shell. so would example 1 run slower because the shell has one extra byte to read/interpret?
What is the difference between print and printf?
The difference between printf and print is the format argument. This is an expression whose value is taken as a string; it specifies how to output each of the other arguments. The printf statement does not automatically append a newline to its output. It outputs only what the format string specifies.
What is difference between $@ and $* in Shell?
From: shellscript.sh/variables2.html ,The variable $@ is all parameters $1 .. whatever. The variable $*, is similar, but does not preserve any whitespace, and quoting, so “File with spaces” becomes “File” “with” “spaces”.
What is the difference between ‘>’ and in Unix?
So, what we learned is, the “>” is the output redirection operator used for overwriting files that already exist in the directory. While, the “>>” is an output operator as well, but, it appends the data of an existing file. Now you know the difference of the operators. Hope you find the tutorial helpful.
Is Echo faster than printf?
Is Echo faster than printf statement?
echo and print are virtually (not technically) the same thing. The (pretty much only) difference between the two is that print will return the integer 1 , whereas echo returns nothing.
Which is faster print or echo in Ksh?
Echo – displys the output as such and it is comparitively faster than print. With ksh at least both echo and print are very fast built-in commands. Dave Korn added print to ksh. At the time ksh was developed Unix was split into a BSD and USG. And the echo statement was different.
How does echo print its argument in Bash?
echo prints its argument followed by a newline. With multiple arguments, they are separated by spaces. Depending on the unix variant, the shell and the shell options, it may also interpret some escape sequences beginning with , and it may treat the first argument (s) as options if they start with -.
What’s the difference between printf and Echo in Java?
echo always exits with a 0 status, and simply prints arguments followed by an end of line character on the standard output, while printf allows for definition of a formatting string and gives a non-zero exit status code upon failure. printf has more control over the output format.
Why is the newline suppressed in Ksh shell?
The newline is suppressed if any of the arguments contain the backslash sequence \\c. See print command below for a list of other backslash sequences that are recog- nized.