Hi everybody, i want to make an argument at echo command that takes a alpharithmetic and returns it reversed. How this can be done? plus what makefile changes are needed (0 Replies)
Bit of a weird one i suppose, i want to use an echo inside an echo... For example...
i have a script that i want to use to take users input and create another script. Inside this script it creates it also needs to use echos...
echo "echo "hello"" >$file
echo "echo "goodbye"" >$file
... (3 Replies)
Hi,
I've a logging function in bourne shell, flog() which logs the first argument passed to it. How can I pass arguments to this function from a file, like
cat filename | sed '...filtering...' | flog
or
cat filename | sed '...filtering...' | xargs flog
Which did not work, after which... (3 Replies)
hi everobody
kindly consider the following
in tclsh
I understand that we can do the following
%exec UnixCmd arg1 arg2
but if I assinged the arguments to a list insde tclsh how can I use them back
i.e
%set ArgList
%exec UnixCmd
%exec Unixcmd $list
%exec
all the... (1 Reply)
hi,
just wanted to make a shortcut of this one
a="a b c"
b=`echo $a | awk '{print $2}'`
echo "the middle is $b"
why can't i do this:
a="a b c"
echo "the middle is ${`echo $a | awk '{print $2}'`}" <- bad substitution :wall:
thanks (6 Replies)
# echo 'export HISTFILE=/var/log/history/history_$(uname -n)_$(date +%Y:%b:%d:%H:%M)_$(who am i | awk '{print \$1}')' >> new_file
#
# cat new_file
export HISTFILE=/var/log/history/history_$(uname -n)_$(date +%Y:%b:%d:%H:%M)_$(who am i | awk {print $1})
#
Now how to echo the quotes around the... (2 Replies)
I need to call a function within a code with $database and $ service as the arguments How do I proceed ? and how would a function be defined and these two arguments would be used inside the function?
calc_pref_avail $database $service
Best regards,
Vishal (7 Replies)
Hi,
Here is my command
print $2 was meant to select the second column however, it is getting substituted with the second argument that was passed to the script.
Can you please tell me how can I resolve this ? (6 Replies)
Hi,
I am having script which contains many functions. Need to print each function name at the starting of the function. Like below,
functionname()
{
echo "functionname"
commands....
}
I've tried like below,
func=`grep "()" scriptname | cut -d "(" -f1`
for i in $func
do
nawk -v... (4 Replies)
I have a script that uses 2 arguments. I want to call the function part within this script using these same arguments. Below is what I came up with below script so far, any guidance would be helpful. Thank you!
cat backup.sh
#!/bin/bash
function usage {
echo "USAGE: $(basename $0)... (6 Replies)
Discussion started by: mbak
6 Replies
LEARN ABOUT PHP
boolval
BOOLVAL(3) 1 BOOLVAL(3)boolval - Get the boolean value of a variableSYNOPSIS
boolean boolval (mixed $var)
DESCRIPTION
Returns the boolean value of $var.
PARAMETERS
o $var
- The scalar value being converted to a boolean.
RETURN VALUES
The boolean value of $var.
EXAMPLES
Example #1
boolval(3) examples
<?php
echo '0: '.(boolval(0) ? 'true' : 'false')."
";
echo '42: '.(boolval(42) ? 'true' : 'false')."
";
echo '0.0: '.(boolval(0.0) ? 'true' : 'false')."
";
echo '4.2: '.(boolval(4.2) ? 'true' : 'false')."
";
echo '"": '.(boolval("") ? 'true' : 'false')."
";
echo '"string": '.(boolval("string") ? 'true' : 'false')."
";
echo '"0": '.(boolval("0") ? 'true' : 'false')."
";
echo '"1": '.(boolval("1") ? 'true' : 'false')."
";
echo '[1, 2]: '.(boolval([1, 2]) ? 'true' : 'false')."
";
echo '[]: '.(boolval([]) ? 'true' : 'false')."
";
echo 'stdClass: '.(boolval(new stdClass) ? 'true' : 'false')."
";
?>
The above example will output:
0: false
42: true
0.0: false
4.2: true
"": false
"string": true
"0": false
"1": true
[1, 2]: true
[]: false
stdClass: true
SEE ALSO floatval(3), intval(3), strval(3), settype(3), is_bool(3), Type juggling.
PHP Documentation Group BOOLVAL(3)