Thanks for the great help DGPickett. Could you please explain what some of the switches do and their importance; for example -n99 in xargs and -u +0 -1 in sort. The reason I ask is that I rewrote this using parallel and I'm wondering if my script will lead to some pitfalls that I've overlooked.
Last edited by cue; 08-06-2011 at 04:12 PM..
Reason: Fixed script for unique checksums only for empty files.
Hi, I know that inode for each file is unique, but is it the for the directory? So far I found different directories has the same inode nubmer when you do ls -i, could some one explain why? Thanks a lot. (9 Replies)
Ok, so I just got charged with the task of deleting some 300 user folders in a FTP server to free up some space. I managed to grep and cut the list of user folders to delete into a list of one user folder per line.
Example:
bob00
jane01
sue03
In the home folder, there are folders a-z, and... (5 Replies)
Hi,
I have a directory with Multiple subdirectories and 1000s of pictures (jpg) in each directory. The problem is that each directory has a 001.jpg in them. I want to append a unique name (the directory_name)would be fine. and then move them to one main backup directory once they have been... (1 Reply)
hi
i have used comm -13 <(sort 1.txt) <(sort 2.txt) option to get the unique lines that are present in file 2 but not in file 1. but some how i am getting the entire file 2. i would expect few but not all uncommon lines fro my dat. is there anything wrong with the way i used the command?
my... (1 Reply)
Hello,
I`m a complete newbie to coding, please help with this problem.
I have multiple files in a directory, I have to loop through the contents of each file and extract number of unique isoforms in that file. Each file is tab delimited and only the line with the first parent (column 3)... (1 Reply)
In a incoming folder i have list of files like below,i want to pick the unique files to process the job. if same file contain more than one then it should pick latest date modified file to process.
drwxrwsrwx 2 n308799 infagrp 256 May 20 17:42 Final_Working
drwxrwsrwx 2... (1 Reply)
I am trying to add a unique identifier to two file extensions .bam and .vcf in a directory located at /home/cmccabe/Desktop/index/R_2016_09_21_14_01_15_user_S5-00580-9-Medexome.
The identifier is in $2 of the input file. What the code below is attempting to do is strip off the last portion... (21 Replies)
Given a directory containing say a few thousand files,
please output a list of all the names of the files in the directory that are exactly the same, i.e. have the same contents.
func(a_directory_name) output -> {“matches”: , ... ]}
e.g. func(“/home/my/files”) where the directory... (7 Replies)
I have a directory of files, I can show the number of lines in each file and order them from lowest to highest with:
wc -l *|sort
15263 Image.txt
16401 reference.txt
40459 richtexteditor.txt
How can I also print the number of unique lines in each file?
15263 1401 Image.txt
16401... (15 Replies)
Discussion started by: spacegoose
15 Replies
LEARN ABOUT ULTRIX
uulog
uucp(1c)uucp(1c)Name
uucp, uulog, uuname - unix to unix copy
Syntax
uucp [option...] source-file... destination-file
uulog [option...]
uuname [option...]
Description
The command copies files named by the source-file arguments to the destination-file argument. A file name either may be a path name on
your machine or may have the form
system-name!pathname
where `system-name' is taken from a list of system names which knows about. Shell metacharacters ?*[] appearing in the pathname part will
be expanded on the appropriate system.
Pathnames may be a full pathname, a pathname preceded by ~user, where user is a userid on the specified system and is replaced by that
user's login directory, or anything else prefixed by the current directory.
If the result is an erroneous pathname for the remote system, the copy will fail. If the destination-file is a directory, the last part of
the source-file name is used. If a simple ~user destination is inaccessible to data is copied to a spool directory and the user is noti-
fied by
The command preserves execute permissions across the transmission and gives 0666 read and write permissions. For further information, see
Options
The following options are interpreted by
-d Creates all necessary directories for the file copy.
-c Uses the source file when copying out rather than copying the file to the spool directory.
-m Sends you mail when the copy is complete.
-nrec
Sends mail to the recipient.
-W Expands only local files. Normally files names are prepended with the current working directory if a full path is not specified. The
-W tells to expand local files only.
The command prints a summary of and transactions that were recorded in the file
The options cause to print logging information:
-ssys
Displays information about work involving specified system.
-uuser
Displays information about work involving specified user.
The command lists the uucp names of known systems.
-l Lists local system name.
Warnings
The domain of remotely accessible files can (and for obvious security reasons, usually should) be severely restricted. You will very
likely not be able to fetch files by pathname. Ask a responsible person on the remote system to send them to you. For the same reasons,
you will probably not be able to send files to arbitrary pathnames.
Restrictions
All files received by will be owned by uucp.
The -m option will only work sending files or receiving a single file. (Receiving multiple files specified by special shell characters
?*[] will not activate the -m option.)
Files
/usr/spool/uucp - spool directory
/usr/lib/uucp/* - other data and program files
/etc/acucap - shared autodial modem database
See Alsomail(1), uux(1c), acucap(5)
"Uucp Implementation Description," ULTRIX Supplementary Documentation, Vol. III:System Manager
uucp(1c)