If I had a list of numbers in two different files, what would be the fastest and easiest way to find out which numbers in list B are not in list A without reading each number in list B one at a time and using grep thousands of times against list A?
I have two very long lists of numbers and the... (4 Replies)
Hi, I need a script that will:
1. Go through about 20 different folders, each containing about 20 1d files. The 1d files go something like this:
22.253 37.707 78.117 112.374 127.944 156.067 180.956 233.785 249.256 ... (1 Reply)
File_A contains Strings:
a
b
c
d
File_B contains Strings:
a
c
z
Need to have script written in either sh or ksh. Derive resultant files (File_New_A and File_New_B) from lists File_A and File_B where string elements in File_New_A and File_New_B are listed below.
Resultant... (7 Replies)
I am dealing will many thousand fairy small files.
I need to search them for various matches and depending on what I find, may need to search some files again for additional matches.
Generally speaking, is it better to write a txt file to an @array/@list and then work with it (multiple... (1 Reply)
Hello, I'm trying to write a script which is listing files based on different preferences, like filetype or permissions. All is fine, except for one: I want to list files in /home which has a different owner than the home directory it is in.
Here is an example:
/home/UserA is the directory, and... (10 Replies)
I have two files A and B listing ip addresses
and all the ip addresses in B are in A, and A includes other ip addresses
now I want to get the list of the ip addresses that are in A but not in B
how to achieve this? thanks (1 Reply)
Looking for a little help here.
I have 1000's of text files within a multiple folders.
YYYY/
/MM
/1000's Files
Eg.
2014/01/1000 files
2014/02/1237 files
2014/03/1400 files
There are folders for each year and each month, and within each monthly folder there are... (4 Replies)
I want to compare 4 edge-lists to basically see if an edge is present in all 4 networks. The issue is that an edge A-B in one file can be present as B-A in another file.
Example:
Input 1: net1.txt
A B 0.1
C D 0.65
D E 0.9
E A 0.7
Input 2: net2.txt
A Z 0.1
C D 0.65
E D 0.9
E A... (1 Reply)
I have this while loop, that works but is quite slow to process though. I'm hopping there might be a faster/better way to find what I'm looking for.
I have 2 lists of numbers, and want to only find files where a file name has both values present.
each list has about 100 values.
while... (10 Replies)
I have a tar arcive
arch_all.tar.gz
and 4 batched tar archive . These batches are supposed to have all the files form arch1.all.tar.gz
arch1_batch1.tar.gz
arch1_batch2.tar.gz
arch1_batch3.tar.gz
arch1_batch4.tar.gz
my issue is that the directory structure in "arch_all.tar.gz" is... (6 Replies)
Discussion started by: sumang24
6 Replies
LEARN ABOUT PLAN9
yesterday
YESTERDAY(1) General Commands Manual YESTERDAY(1)NAME
yesterday - print file names from the dump
SYNOPSIS
yesterday [ -c ] [ -date ] files ...
DESCRIPTION
Yesterday prints the names of the files from the most recent dump. Since dumps are done early in the morning, yesterday's files are really
in today's dump. For example, if today is March 17, 1992,
yesterday /adm/users
prints
/n/dump/1992/0317/adm/users
In fact, the implementation is to select the most recent dump in the current year, so the dump selected may not be from today.
With option -c, yesterday copies the dump file to the current directory.
The date option selects other day's dumps, with a format of 2, 4, 6, or 8 digits of the form dd, mmdd, yymmdd, or yyyymmdd.
Yesterday does not guarantee that the string it prints represents an existing file.
EXAMPLES
Back up to yesterday's MIPS binary of vc:
cd /mips/bin
yesterday -c vc
Temporarily back up to March 1's MIPS C library to see if a program runs correctly when loaded with it:
bind `{yesterday -0301 /mips/lib/libc.a} /mips/lib/libc.a
rm v.out
mk
v.out
FILES
/n/dump
SOURCE
/rc/bin/yesterday
SEE ALSO fs(4)BUGS
It's hard to use this command without singing.
YESTERDAY(1)