Hi,
I am new to unix. Is their a way to pass the output of the line below to a variable var1.
ls -1t | head -1.
I am trying something like var1=ls -1t | head -1, but I get error.
Situation is: I get file everyday through FTP in my unix box. I have to write a script that picks up first... (1 Reply)
Hi all
I have got a file digits.data containing the following data
1 3 4
2 4 9
7 3 1
7 3 10
I am writing a script that will pass an argument from C-shell to nawk command. But it seems the values in the nawk comman does not get set. the program does not print no values out. Here is the... (1 Reply)
Hi,
I am facing a problem to pass command line arguments that looks like
<script name> aa bb "cc" dd "ee"
I want to pass all 5 elements include the " (brackets). when I print the @ARGV the " disappear. I hope I explain myself
Regards,
Ziv (4 Replies)
I have one working awk command line. Which taking data from the “J1202523.TXT” file and generating the “brazil.dat” file. PFB code.
awk '{ DUNS = substr($0,0,9);if ( substr($0,14,3) == "089" ) print DUNS }' J1202523.TXT > Brazil.dat
But now I want to pass two parameter as a command line argument... (4 Replies)
Hello all,
New to C and I'm trying to write a program which can run a unix command. Would like to have the option of giving the user the ability to enter arguments e.g for "ls" be able to run "ls -l".
I would appreciate any help.
Thanks
#include <stdio.h>
#include <unistd.h>
#include... (3 Replies)
Hi,
I'm trying to pass the variable in the find command like below
a=log.20111114
find /apps/file3_logs/env3/ -name '$a' -exec ls -lrt {} \;
but it's not working
thanks in advance.
Regards
Thelak (3 Replies)
Can we pass an argument to cut command as below
Suppose cut command is used in for or while loop and we need to pass the incremental counter
cut -f$i
Here $i is an argument.
Like wise it has to come
cut -f1
cut -f2
Where i=1,2,3,.... (1 Reply)
Hi.
I'm trying to do a "simple" thing.
grep -rls grepped_exp path | xgs
where xgs is an alias to something like:
xargs gvim -o -c ":g/grepped_exp"
now the problem is that I want to pass the "grepped_exp" to the piped alias.
I was able to do something like what I want without the... (4 Replies)
Hi All,
I am having command to run which will take argument as input file. Right now we are creating the input file by cat and executing the command
ftptransfer -i input file
cat >input file
file1
file2
cntrl +d
Is there a way I can do that in a single command like
... (1 Reply)
Discussion started by: arunkumar_mca
1 Replies
LEARN ABOUT PHP
readline_callback_handler_install
READLINE_CALLBACK_HANDLER_INSTALL(3) 1 READLINE_CALLBACK_HANDLER_INSTALL(3)readline_callback_handler_install - Initializes the readline callback interface and terminal, prints the prompt and returns immediatelySYNOPSIS
bool readline_callback_handler_install (string $prompt, callable $callback)
DESCRIPTION
Sets up a readline callback interface then prints $prompt and immediately returns. Calling this function twice without removing the previ-
ous callback interface will automatically and conveniently overwrite the old interface.
The callback feature is useful when combined with stream_select(3) as it allows interleaving of IO and user input, unlike readline(3).
PARAMETERS
o $prompt
- The prompt message.
o $callback
- The $callback function takes one parameter; the user input returned.
RETURN VALUES
Returns TRUE on success or FALSE on failure.
Example #1
Readline Callback Interface Example
<?php
function rl_callback($ret)
{
global $c, $prompting;
echo "You entered: $ret
";
$c++;
if ($c > 10) {
$prompting = false;
readline_callback_handler_remove();
} else {
readline_callback_handler_install("[$c] Enter something: ", 'rl_callback');
}
}
$c = 1;
$prompting = true;
readline_callback_handler_install("[$c] Enter something: ", 'rl_callback');
while ($prompting) {
$w = NULL;
$e = NULL;
$n = stream_select($r = array(STDIN), $w, $e, null);
if ($n && in_array(STDIN, $r)) {
// read a character, will call the callback when a newline is entered
readline_callback_read_char();
}
}
echo "Prompting disabled. All done.
";
?>
readline_callback_handler_remove(3), readline_callback_read_char(3), stream_select(3).
PHP Documentation Group READLINE_CALLBACK_HANDLER_INSTALL(3)