Hey guys, can someone help me with this script...
#!/bin/sh
dir=`pwd`
for i in *.f
do if
then M=`wc -l < ${i}
sed -e 's://.*::' < ${i} | \
(echo "//${i} -"$M ; cat - ) > $i.tmp
chmod 700 $i ; mv ${i}.tmp $i
... (6 Replies)
I keep getting errors messages for the "else" statement at line 81?
#!/bin/ksh
######### Environment Setup #########
PATH=/gers/nurev/menu/pub/sbin:/gers/nurev/menu/pub/bin:/gers/nurev/menu/pub/mac
:/gers/nurev/menu/adm/sbin:/gers/nurev/menu/adm/bin:/gers/nurev/menu/adm/mac:/ge... (8 Replies)
I am trying to create a script but it is giving me errors on Cygwin for the following script. Could someone tell me, what am I doing wrong?
choice=1000
echo "choice is $choice"
while ; do
echo "choice is $choice"
echo 'Please select your option:'
echo '1. Option 1'
echo '2. Option 2'... (3 Replies)
Hi,
I have this example script which gives error ": unexpected operator/operand". I need the '' brackets for operator precedence.
#!/bin/ksh
x="abc"
y="xyz"
z="123"
if -a
then
print "yes"
else
print "no"
fi
Thanks (2 Replies)
Hi
I've made a short script but it is not working. Can some pl. help me out in this?
./123.sh
#! /usr/bin/ksh
# for changing to this directory
cd /layered/relational/scripts
When I run the above scripts, it doesn't change to the above directory. I don't what is the problem? the... (2 Replies)
Hello all,
so this is a script i did for an assignement,
- first option greets the user according to the time after fetching his name
- second options isn't implemented
- third check the performance according to how many users are using the system
- creates a log of names, time and ip of the... (14 Replies)
Please see below mentioned my script ... it ran once without any issue .... then after it is not coming out .... please suggest what is wrong?
#!/bin/ksh
## if (( ${num_errors} > 0 ));
export ACULOG=/home/varshnes/input
export num_errors=10
**** Search for 'Start correcting roll up... (7 Replies)
Hi...
I am fed up in file handing with array for comparing....
1st I want save first 2 columns of file 1
I tried like this,,
{getline< "file1";ln=$1; lt=$2}then I read second file's 1st and 2nd column..and saved like this
and small calculation and initialization
var1 =$1
var2 =$2... (5 Replies)
Hi ! all I am just trying to check range in my datafile
pls tell me why its resulting wrong
admin@IEEE:~/Desktop$ cat test.txt
0 28.4
5 28.4
10 28.4
15 28.5
20 28.5
25 28.6
30 28.6
35 28.7
40 28.7
45 28.7
50 28.8
55 28.8
60 28.8
65 28.1... (2 Replies)
Discussion started by: Akshay Hegde
2 Replies
LEARN ABOUT PHP
substr
SUBSTR(3) 1 SUBSTR(3)substr - Return part of a stringSYNOPSIS
string substr (string $string, int $start, [int $length])
DESCRIPTION
Returns the portion of $string specified by the $start and $length parameters.
PARAMETERS
o $string
- The input string. Must be one character or longer.
o $start
- If $start is non-negative, the returned string will start at the $start'th position in $string, counting from zero. For
instance, in the string ' abcdef', the character at position 0 is ' a', the character at position 2 is ' c', and so forth. If
$start is negative, the returned string will start at the $start'th character from the end of $string. If $string is less than or
equal to $start characters long, FALSE will be returned.
Example #1
Using a negative $start
<?php
$rest = substr("abcdef", -1); // returns "f"
$rest = substr("abcdef", -2); // returns "ef"
$rest = substr("abcdef", -3, 1); // returns "d"
?>
o $length
- If $length is given and is positive, the string returned will contain at most $length characters beginning from $start (depend-
ing on the length of $string). If $length is given and is negative, then that many characters will be omitted from the end of
$string (after the start position has been calculated when a $start is negative). If $start denotes the position of this trunca-
tion or beyond, false will be returned. If $length is given and is 0, FALSE or NULL, an empty string will be returned. If
$length is omitted, the substring starting from $start until the end of the string will be returned.
Example #2
Using a negative $length
<?php
$rest = substr("abcdef", 0, -1); // returns "abcde"
$rest = substr("abcdef", 2, -1); // returns "cde"
$rest = substr("abcdef", 4, -4); // returns false
$rest = substr("abcdef", -3, -1); // returns "de"
?>
RETURN VALUES
Returns the extracted part of $string; or FALSE on failure, or an empty string.
CHANGELOG
+--------------+---------------------------------------------------+
| Version | |
| | |
| | Description |
| | |
+--------------+---------------------------------------------------+
|5.2.2 - 5.2.6 | |
| | |
| | If the $start parameter indicates the position |
| | of a negative truncation or beyond, false is |
| | returned. Other versions get the string from |
| | start. |
| | |
+--------------+---------------------------------------------------+
EXAMPLES
Example #3
Basic substr(3) usage
<?php
echo substr('abcdef', 1); // bcdef
echo substr('abcdef', 1, 3); // bcd
echo substr('abcdef', 0, 4); // abcd
echo substr('abcdef', 0, 8); // abcdef
echo substr('abcdef', -1, 1); // f
// Accessing single characters in a string
// can also be achieved using "square brackets"
$string = 'abcdef';
echo $string[0]; // a
echo $string[3]; // d
echo $string[strlen($string)-1]; // f
?>
Example #4
substr(3) casting behaviour
<?php
class apple {
public function __toString() {
return "green";
}
}
echo "1) ".var_export(substr("pear", 0, 2), true).PHP_EOL;
echo "2) ".var_export(substr(54321, 0, 2), true).PHP_EOL;
echo "3) ".var_export(substr(new apple(), 0, 2), true).PHP_EOL;
echo "4) ".var_export(substr(true, 0, 1), true).PHP_EOL;
echo "5) ".var_export(substr(false, 0, 1), true).PHP_EOL;
echo "6) ".var_export(substr("", 0, 1), true).PHP_EOL;
echo "7) ".var_export(substr(1.2e3, 0, 4), true).PHP_EOL;
?>
The above example will output:
1) 'pe'
2) '54'
3) 'gr'
4) '1'
5) false
6) false
7) '1200'
ERRORS /EXCEPTIONS
Returns FALSE on error.
Example #5
<?php
var_dump(substr('a', 1)); // bool(false)
?>
SEE ALSO strrchr(3), substr_replace(3), preg_match(3), trim(3), mb_substr(3), wordwrap(3), String access and modification by character.
PHP Documentation Group SUBSTR(3)