extracting the value from each field to a variable will conatin a string("5") or just the number?
I suppose your problem comes from your assumption that "strings" and "numbers" are different data types like in other programming languages.
But shells do NOT have data types as all. You can create a variable of type "integer", but it will be merely an ordinary string with only digits allowed. On the other hand you could create a string variable and use it as a number as long as its contains only characters which form a number. For instance the following lines are all syntactically legal:
Code:
typeset foo="5" # create a string variable
foo=(( foo + 2 )) # use it as a number
typeset -i bar=5 # create an "integer" variable
typeset string="abc${bar}def" # use the integer as a string
Notice the second example. If i had tried to add some character to the $bar variable the shell would complain. This is because with "typeset -i" i declared that i want the variable only to contain characters which form an integer. This doesn't stop me from using the variable as a string like you see in the concatenation of $string.
This becomes clear in this example:
Code:
typeset -i foo=3 # create an "integer"
foo="${foo}5" # concatenate this integer like a string
print - "$foo" # will give "35"
Hi,
Iam calling a C program from a Unix shell script. The (C) program reads encrypted username/password from a text file , decrypts and returns the decrypted string.
Is there any way i can return the decrypted string to Unix shell program.
My shell script uses the output of the program to... (11 Replies)
Hi,
I'm having a requirement where I need to call a C program from a shell script and return the value from the C program to shell script.
I refered a thread in this forum. But using that command in the code, it is throwing an error
clear_text_password=$(get_password)
Error: bash:... (24 Replies)
Hi Folks,
The subject is my question:
Can we pass an array of strings from a Perl Program to a Shell Script?
Please provide some sample code.
Thanks
---------- Post updated at 11:52 PM ---------- Previous update was at 11:43 PM ----------
I got it.
Its here:... (0 Replies)
Hello All,
I have 2 files
1 ) source file eg
asasa 1.2.3.4 adfhsdfsdfasdf
zxzxzx 2.3.4.56 dsadasdasdsadasd
kjjkjkjk 30.3.4.5 asdsadsadsadsadsad
vxcvxcvx 1.2.3.4 qwewqewqeqweqwe
2) patern file
1.2.3.4 A
2.3.4.56 B
30.3.4.5 C
I need the source to be changed to
asasa A... (2 Replies)
Hi together,
unfortunately I am not a shell script guru - the following might touch
the depths of awk, substr, split, regexps, where I am still fighting with - but as always the boss needs a fast solution :-(
So: I have the following USER/PASSWORD-installation-config-file, from where I want to... (10 Replies)
I want to create an array which can store the strings from the user input in shell script .
example :-
I want to store the 5 fruits name in a single array which the user provides . (1 Reply)
Hi Experts,
I am writing a python script to grep string from file and display output in csv file as in attached screenshot
https://drive.google.com/file/d/1gfUUdfmQma33tz65NskThYDhkZUGQO0H/view
Input file(result_EPFT_config_device)
Below is the python script i have prepared as of... (1 Reply)
Hi All,
I am trying to use below syntax to find ignore multiple locations while searching for a file.
find / -name "$serviceitem" ! -size 0 2>&1 |egrep -v "tmp|docker|WinSxS|Permission|HISTORY|alternatives|bearer11ssl|manifest"
I tried to assign all the ignore strings to one variable... (2 Replies)
Discussion started by: sravani25
2 Replies
LEARN ABOUT PHP
print
PRINT(3) 1 PRINT(3)print - Output a stringSYNOPSIS
int print (string $arg)
DESCRIPTION
Outputs $arg.
print is not actually a real function (it is a language construct) so you are not required to use parentheses with its argument list.
PARAMETERS
o $arg
- The input data.
RETURN VALUES
Returns 1, always.
EXAMPLES
Example #1
print examples
<?php
print("Hello World");
print "print() also works without parentheses.";
print "This spans
multiple lines. The newlines will be
output as well";
print "This spans
multiple lines. The newlines will be
output as well.";
print "escaping characters is done "Like this".";
// You can use variables inside a print statement
$foo = "foobar";
$bar = "barbaz";
print "foo is $foo"; // foo is foobar
// You can also use arrays
$bar = array("value" => "foo");
print "this is {$bar['value']} !"; // this is foo !
// Using single quotes will print the variable name, not the value
print 'foo is $foo'; // foo is $foo
// If you are not using any other characters, you can just print variables
print $foo; // foobar
print <<<END
This uses the "here document" syntax to output
multiple lines with $variable interpolation. Note
that the here document terminator must appear on a
line with just a semicolon no extra whitespace!
END;
?>
NOTES
Note
Because this is a language construct and not a function, it cannot be called using variable functions.
SEE ALSO echo(3), printf(3), flush(3), Heredoc syntax.
PHP Documentation Group PRINT(3)