Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Md5sum script
Top Forums Shell Programming and Scripting Md5sum script Post 302764735 by Corona688 on Thursday 31st of January 2013 09:50:07 PM
Old 01-31-2013
you can check a file like that with md5sum -c, it gives output like this:

Code:
 $ md5sum -c checksum.txt 2>/dev/null
a: OK
b: FAILED
c: FAILED open or read
d: OK

so you could handle it like this:

Code:
while ! md5sum -c checksum.txt > checklist
do
        awk -F: '!/OK$/ && $0=$1' checklist | while read FILENAME
        do
                echo "Need to download $FILENAME"
        done
done

This User Gave Thanks to Corona688 For This Post:
shadyuk
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

What is md5sum???

Hi all, I am kinda puzzled. When and Why do we use md5sum? I've read man pages for mp5sum, but didn't get anything out of it. Please, can someone explain this to me in couple of words. Thank you all. (1 Reply)
Discussion started by: solvman
1 Replies

2. UNIX for Dummies Questions & Answers

the file: MD5SUM

i downloaded a Linux distribution from a FTP site today, and i found there is a file named MD5SUM in the same directory, with the following contents: -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 c9a4d963a49e384e10dec9c2bd49ad73 valhalla-SRPMS-disc1.iso 41b03d068e84d2a17147aa27e704f79b ... (1 Reply)
Discussion started by: samprax
1 Replies

3. Shell Programming and Scripting

Restart script based on MD5sum

Ok, I run a small script, that restarts a perl script when it fails (it's a very unreliable perl script, but I can't change it, it's crucial, and I don't know perl) It outputs data into a logfile. Unfortunately, it also regularly hangs. This is a major problem because if it hangs, no data is... (6 Replies)
Discussion started by: Bakes
6 Replies

4. Programming

Computing an MD5Sum in C

Is it possible to call the unix command md5sum from within a C program. I am trying to write a C program that scans a directory and computes the MD5Sum of all the files in the directory. Whenever I use md5sum 'filename' I get the error 'md5sum undeclared'. Is there a header file or some library... (3 Replies)
Discussion started by: snag49ers
3 Replies

5. Shell Programming and Scripting

Script to check MD5SUM on file

Hi, I currently have a shell script that takes an RPM and scp's it to a set of remote servers and installs it. What I would like to be able to do is make the script get the md5sum of the RPM locally (so get the md5sum of the rpm from where im running the script) and then scp the rpm to the... (0 Replies)
Discussion started by: tb1986
0 Replies

6. Shell Programming and Scripting

how to get a md5sum in perl

hi All: i write a adduser script in perl , but I don't know how to deal with the password , for it stored as md5. and i don't use the shell command passwd. give me some advice...thanks (1 Reply)
Discussion started by: kingdream
1 Replies

7. Shell Programming and Scripting

md5sum in different linux

something strange is that i find the md5sum command in different linux generate different result, for example, i have tried the same file in CentOS and Rhel, The md5 results are different, it is quite headache, who know the tricks? (3 Replies)
Discussion started by: zbc
3 Replies

8. Shell Programming and Scripting

Making a script to copy files not seen before (using md5sum)

Hello, I would like to make a script that searches through a SRC folder and copies only files it's never seen before to a DEST folder. SRC = /user/.phonesync/photos-backup DST = /usr/.phonesync/photos-new So basically, I'd start with a: md5sum /user/.phonesync/photos-backup/* >... (29 Replies)
Discussion started by: nbsparks
29 Replies

9. Shell Programming and Scripting

Md5sum on crontab

Hi all, I have to verify the integrity of a ISO image that is downloaded periodically on my PC. In order to do that, I've written a bash script that use the command md5sum with the aim to match the generated code with the default one created with the SIO image. The problem is that, if I start... (1 Reply)
Discussion started by: Mr. Piros
1 Replies

10. Shell Programming and Scripting

[md5sum] script

I am getting No such file or directory if my variable contains white spaces... Is there a way to fix this? This works x="1.md5" md5sum -c "$x" This, does not x="23\ 5\ 6\ 7\ 8\ 9\ 10.md5" md5sum -c "$x" md5sum: '23\ 5\ 6\ 7\ 8\ 9\ 10.md5': No such file or directory How do I fix... (1 Reply)
Discussion started by: soichiro
1 Replies

LEARN ABOUT DEBIAN

pct-scanner-script

PCT-SCANNER-SCRIPT(1)					      General Commands Manual					     PCT-SCANNER-SCRIPT(1)

NAME

       pct-scanner-script - easy scan and create merged DjVu and PDF documents for archiving

SYNOPSIS

       pct-scanner-script [--help]

DESCRIPTION

       pct-scanner-script  is  a  bash script and configuration system to easily scan documents and create a digital archiving. It can create DjVu
       PDF and JPEG outputs, in merged and individual files. It also has a configuration system where different  configurations  can  be  defined,
       making it easy to switch between configurations.

       Please use pct-scanner-script --help to find all program options, the complete help, and all examples.

       Features:
	 - auto archiving in merged and individual DjVu, PDF, and JPEG files
	 - auto and manual resume when scanning somehow fails
	 - cascading configuration system, for easy customizing
	 - easy command-line-style bash program, with useful options
	 - archiving made possible with both adf and flatbed scanners
	 - built for productivity and daily use
	 - uses bash, scanadf and other mainstream processing tools
	 - multilanguage commandline output

OPTIONS

       -h, --help, -?
	      Show summary of options, help, and examples.

DEBUGGING

       This  program  is  a  helper  script  to easy scan and automated digital document archiving for normal and adf scanners. You can debug this
       script by running it as bash -x pct-scanner-script [options]. The script is just a nice wrapper for the scanadf, DjVu and PDF tools.

SEE ALSO

       scanadf(1),

AUTHOR

       pct-scanner-script and this manual page are written by:
	      Jelle de Jong <jelledejong@powercraft.nl>.

								  March 31, 2009					     PCT-SCANNER-SCRIPT(1)
All times are GMT -4. The time now is 09:23 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy