my $sumInfo = `md5sum test.txt --quiet -c checkFile`
This works well enough provided that "checkFile" exists; and that it's formatted in accord with md5sum's conventions.
However, I'm wanting to run md5sum to do some automated file verification work, and need to glean any errors which might be thrown along the way when:
"checkFile"doesn't exist
"checkFile"is not properly formatted
Surprisingly, md5sum seems to exit with an "OK" code whether or not the above criteria are met; despite its passing an error message to the terminal. In other words, all looks as though the check was performed successfully on "test.txt" even if "checkFile"is damaged or missing. This causes any downstream detection logic to be a good bit less than robust.
Hi Friends,
Can any of you explain me about the below line of code?
mn_code=`env|grep "..mn"|awk -F"=" '{print $2}'`
Im not able to understand, what exactly it is doing :confused:
Any help would be useful for me.
Lokesha (4 Replies)
Hi Everyone,
if my folder "foldera" inside has one file.
so if i do
if ($df =~ /^\./) { next; }
then i will get
###
filea
###
if i want to have
###
..
filea
###
means also display the parent .., how should i modify the perl ~// in my code?
Thanks
---------- Post updated... (6 Replies)
Hi,
I have line in input file as below:
3G_CENTRAL;INDONESIA_(M)_TELKOMSEL;SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL
My expected output for line in the file must be :
"1-Radon1-cMOC_deg"|"LDIndex"|"3G_CENTRAL|INDONESIA_(M)_TELKOMSEL"|LAST|"SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL"
Can someone... (7 Replies)
logs:
"/home/abc/public_html/index.php"
"/home/abc/public_html/index.php"
"/home/xyz/public_html/index.php"
"/home/xyz/public_html/index.php"
"/home/xyz/public_html/index.php"
how to use "cut" or "awk" or "sed" to get the following result:
abc
abc
xyz
xyz
xyz (8 Replies)
Hi all,
Can anyone guess why this is happening? I am new to Perl, so please help me to fix this error:
- I have a static html file which calls the cgi-perl script.
HTML Code:
<html>
<head>
<title> Hey Dude! </title>
</head>
<body>
<form method="POST"... (3 Replies)
How to use "mailx" command to do e-mail reading the input file containing email address, where column 1 has name and column 2 containing “To” e-mail address
and column 3 contains “cc” e-mail address to include with same email.
Sample input file, email.txt
Below is an sample code where... (2 Replies)
Hello.
System : opensuse leap 42.3
I have a bash script that build a text file.
I would like the last command doing :
print_cmd -o page-left=43 -o page-right=22 -o page-top=28 -o page-bottom=43 -o font=LatinModernMono12:regular:9 some_file.txt
where :
print_cmd ::= some printing... (1 Reply)
Hi 2 all,
i have had AIX 7.2
:/# /usr/IBMAHS/bin/apachectl -v
Server version: Apache/2.4.12 (Unix)
Server built: May 25 2015 04:58:27
:/#:/# /usr/IBMAHS/bin/apachectl -M
Loaded Modules:
core_module (static)
so_module (static)
http_module (static)
mpm_worker_module (static)
... (3 Replies)
Discussion started by: penchev
3 Replies
LEARN ABOUT SUSE
md5sum
MD5SUM(1) User Commands MD5SUM(1)NAME
md5sum - compute and check MD5 message digest
SYNOPSIS
md5sum [OPTION]... [FILE]...
DESCRIPTION
Print or check MD5 (128-bit) checksums. With no FILE, or when FILE is -, read standard input.
-b, --binary
read in binary mode
-c, --check
read MD5 sums from the FILEs and check them
-t, --text
read in text mode (default)
The following three options are useful only when verifying checksums:
--quiet
don't print OK for each successfully verified file
--status
don't output anything, status code shows success
-w, --warn
warn about improperly formatted checksum lines
--help display this help and exit
--version
output version information and exit
The sums are computed as described in RFC 1321. When checking, the input should be a former output of this program. The default mode is
to print a line with checksum, a character indicating type (`*' for binary, ` ' for text), and name for each FILE.
AUTHOR
Written by Ulrich Drepper, Scott Miller, and David Madore.
REPORTING BUGS
Report md5sum bugs to bug-coreutils@gnu.org
GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
General help using GNU software: <http://www.gnu.org/gethelp/>
COPYRIGHT
Copyright (C) 2009 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
SEE ALSO
The full documentation for md5sum is maintained as a Texinfo manual. If the info and md5sum programs are properly installed at your site,
the command
info coreutils 'md5sum invocation'
should give you access to the complete manual.
GNU coreutils 7.1 July 2010 MD5SUM(1)
05-21-2014
