Hi,
I am a newbie to shell scripting, and I have a file which quite large which I would like to delete lines at certain places. I want to search for a keyword which is recurring in the file. When matched I would like to delete the line. And when the file was so huge I thought I ought to learn... (3 Replies)
Input:
a
b
b
c
d
d
I need:
a
c
I know how to get this (the lines that have duplicates) :
b
d
sort file | uniq -d
But i need opossite of this. I have searched the forum and other places as well, but have found solution for everything except this variant of the problem. (3 Replies)
Hi All,
I have a file with 3 columns (Bank Name, Account Number and Amount). My requirement, I need to delete lines using Unix Shell script:
1. Which are having Alphanumeric characters in Account Number (eg. Line3).
2. Which are having 0.00 in amount. (eg. Line4)
3. And also I need to... (4 Replies)
Hi Experts,
I have a file in the below given format. First two lines are header and Trailer. Rest all are transaction Lines. I have to delete all other lines except first line (Header) and lines which contains 5000 in 1st column and 0 in 5th column.
Can anyone please kindly provide me with... (6 Replies)
Hi Experts,
I have a file format as mentioned below. I would like to have unix script (HP Unix) which can:
1. Remove first 6 and last 3 lines.
2. Delete the lines where 3rd column having Alpha Numeric Number
3. Delete the lines where 4th column having 0.00
4. Calculate the sum of all the... (16 Replies)
Hi All,
I have a very huge file (4GB) which has duplicate lines. I want to delete duplicate lines leaving unique lines. Sort, uniq, awk '!x++' are not working as its running out of buffer space.
I dont know if this works : I want to read each line of the File in a For Loop, and want to... (16 Replies)
Hi
Iam having file like below
10.238.52.65 pun-ras-bng-mhs-01 server
10.238.52.65 pun-ras-bng-mhs-01 10.10.10.10
10.238.52.65 pun-ras-bng-mhs-01 10.10.20.10
10.238.54.1 enk-ras-bng-cse-01 server
10.238.54.1 enk-ras-bng-cse-01 10.10.30.10
10.238.54.1 enk-ras-bng-cse-01 10.10.10.10
... (5 Replies)
Discussion started by: surender reddy
5 Replies
LEARN ABOUT PHP
is_executable
IS_EXECUTABLE(3) 1 IS_EXECUTABLE(3)is_executable - Tells whether the filename is executableSYNOPSIS
bool is_executable (string $filename)
DESCRIPTION
Tells whether the filename is executable.
PARAMETERS
o $filename
- Path to the file.
RETURN VALUES
Returns TRUE if the filename exists and is executable, or FALSE on error.
EXAMPLES
Example #1
is_executable(3) example
<?php
$file = '/home/vincent/somefile.sh';
if (is_executable($file)) {
echo $file.' is executable';
} else {
echo $file.' is not executable';
}
?>
ERRORS /EXCEPTIONS
Upon failure, an E_WARNING is emitted.
NOTES
Note
The results of this function are cached. See clearstatcache(3) for more details.
Tip
As of PHP 5.0.0, this function can also be used with some URL wrappers. Refer to "Supported Protocols and Wrappers" to determine
which wrappers support stat(3) family of functionality.
SEE ALSO is_file(3), is_link(3).
PHP Documentation Group IS_EXECUTABLE(3)