I have a problem with syntax methinks, when it comes to sed.
This is my script for a user to type sed commands:-
Basically, a user is prompted to type a sed command that will interrogate a file they specify and based on criteria they specify. That information is then written to a new file that they give a name to. All of their responses are stored in variables, that are located in a function to be executed later on in the program.
I think the problem lies in my sed syntax.
To test it I type this in the stages as set out by the program:-
I have also tried:-
I get:-
Any syntax ideas?
Or any other advice as to what I am doing wrong?
Hi there,
I am trying to do somehting similar, but on a wider scale.
I am trying to write a script that would open the home directory, open the first (of 650) user's folder
open the ?mail directory, which every user has
Then I need the script to read each of the files and folder names with... (2 Replies)
I am new to shell scripting and would appreciate any help I can get.
I need to write a Unix shell script that I will run whenever I have a tar file to uncompress(Korn shell). Please put in mind that I have different environements that I will run it on.
Thanks in advance ;) (4 Replies)
I'm getting the following errors when I try to write a script to unzip some zip files. When I use the free trial copy of the commerical winzip program, however, they work fine. When I use -l or -t on unzip it indicates no errors. When I use the -o switch interactively from the bash command line it... (1 Reply)
can anyone help me in writing script in UNIX for copying files in two server from the third server after checking the files in the third server and if there is anything new in the third server automatically it should be added to the rest of the two servers and if same file is existing in the two... (4 Replies)
I would like to find whether a file exists in the UNIX machine. That i can check using
if ;then
echo "exists"
echo " `cat $file` "
else
echo "invalid file"
fi.
and i can find out using :
find / -name "filename" . But it i have wanted to search in all directories. How to get... (3 Replies)
Hi
Here is my script that calls my awk script
#!/bin/bash
set -x
dir="/var/local/dsx/csv"
testfile="$testfile"
while getopts " f: " option
do
case $option in
f ) testfile="$OPTARG";;
esac;
done
./scriptFile --testfile=$testfile >> $dir/$testfile.csv
It calls my awk... (1 Reply)
I want to write a Perl script that manipulates multiple files. In the directory, I have files 250.*chr$.ped where * is from 1 to 1000 and $ is from 1-22 for a total of 22 x 10,000 = 22,000 files.
I want to write a script that only manipulates files 250.1chr*.ped where * is from 1 to 22.... (10 Replies)
Hi,
I thought I am getting pretty good with sed and awk, but now I dont have a way out of this question.
I have a table 0.5 16
1.3 14
0.25 15
0.85 16
I want to make a column 3 which contains values that are (corresponding $2 value/sum of all $2).
Please help me out here.
Thanks. (6 Replies)
Hi
I have 1000 files labelled data1.txt through data1000.txt. I want to write a script that prints out the number of lines in each txt file and outputs it in the following format:
Column 1: number of data file (1 through 1000)
Column 2: number of lines in the text file
Thanks! (2 Replies)
Discussion started by: evelibertine
2 Replies
LEARN ABOUT PHP
echo
ECHO(3) 1 ECHO(3)echo - Output one or more stringsSYNOPSIS
void echo (string $arg1, [string $...])
DESCRIPTION
Outputs all parameters.
echo is not actually a function (it is a language construct), so you are not required to use parentheses with it. echo (unlike some other
language constructs) does not behave like a function, so it cannot always be used in the context of a function. Additionally, if you want
to pass more than one parameter to echo, the parameters must not be enclosed within parentheses.
echo also has a shortcut syntax, where you can immediately follow the opening tag with an equals sign. Prior to PHP 5.4.0, this short syn-
tax only works with the short_open_tag configuration setting enabled.
I have <?=$foo?> foo.
PARAMETERS
o $arg1
- The parameter to output.
o $...
-
RETURN VALUES
No value is returned.
EXAMPLES
Example #1
echo examples
<?php
echo "Hello World";
echo "This spans
multiple lines. The newlines will be
output as well";
echo "This spans
multiple lines. The newlines will be
output as well.";
echo "Escaping characters is done "Like this".";
// You can use variables inside of an echo statement
$foo = "foobar";
$bar = "barbaz";
echo "foo is $foo"; // foo is foobar
// You can also use arrays
$baz = array("value" => "foo");
echo "this is {$baz['value']} !"; // this is foo !
// Using single quotes will print the variable name, not the value
echo 'foo is $foo'; // foo is $foo
// If you are not using any other characters, you can just echo variables
echo $foo; // foobar
echo $foo,$bar; // foobarbarbaz
// Some people prefer passing multiple parameters to echo over concatenation.
echo 'This ', 'string ', 'was ', 'made ', 'with multiple parameters.', chr(10);
echo 'This ' . 'string ' . 'was ' . 'made ' . 'with concatenation.' . "
";
echo <<<END
This uses the "here document" syntax to output
multiple lines with $variable interpolation. Note
that the here document terminator must appear on a
line with just a semicolon. no extra whitespace!
END;
// Because echo does not behave like a function, the following code is invalid.
($some_var) ? echo 'true' : echo 'false';
// However, the following examples will work:
($some_var) ? print 'true' : print 'false'; // print is also a construct, but
// it behaves like a function, so
// it may be used in this context.
echo $some_var ? 'true': 'false'; // changing the statement around
?>
NOTES
Note
Because this is a language construct and not a function, it cannot be called using variable functions.
SEE ALSO print(3), printf(3), flush(3), Heredoc syntax.
PHP Documentation Group ECHO(3)