#!/usr/bin/perl
# names in file1 not in file2
foreach (@names=`cut -d ':' -f1 file1`) {
chomp(@names);
$count = `grep -c $_ file2`;
if ($count == 0) {
print "$_ is in file1 but not file2.\n";
}
}
$ ./cleanup.pl
matt is in file1 but not file2.
$
Of course there's probably a really simple way to do it...I'll leave that to much smarter people.
Sorry for the duplicate thread this one is similar to the one in
https://www.unix.com/shell-programming-scripting/88132-awk-sed-script-read-values-parameter-files.html#post302255121
Since there were no responses on the parent thread since it got resolved partially i thought to open the new... (4 Replies)
Hello all, I'm working on an attendance callout script for a school district. I need to change our current layout for the vendor. Currently the data is in the form of:
studentid,period,building,
Heres a sample of some made up records:
500,1,30,
500,2,30,
500,3,30,
500,6,30,... (7 Replies)
Hello,
Could some expert soul please help me with this? I have following file format -
task time
abc 5
xyz 4
abc 5
xyz 3
ddd 10
ddd 2
I need to generate output as -
task ... (5 Replies)
I found some posts describing how to completely clean out a mailbox in Unix/Linux. But I want to keep the 50 most recent messages. Any ideas out there?
Thanks! (3 Replies)
Hi Gurus,
I am working with a korn shell script. I should replace in a very great file the character ";" with a space.
Example:
2750;~
2734;~
2778;~
2751;~
2751;~
2752;~
what the fastest method is? Sed? Awk?
Speed is dead main point, Seen the dimensions of the files
Thanks (6 Replies)
Hi gurus,
I have data coming in as shown below. And in each case, I need to pick the data in the last group as shown below.
Data Set 1:
DC | 18161621
LA | 15730880
NY | 16143237
DC | 18161621
LA | 17316397
NY | 17915905
DC | 18161621
LA | 17993534
NY | 18161621
DC | 18161621... (11 Replies)
Hi I want to use sed to change a text files input into an awk script.
For example if the input says " chord -- english " I want to change this using sed 's/pattern 1 /pattern 2 /'g filename but I don't understand how to use part of the pattern 1 to input that into pattern 2 . Like after... (10 Replies)
Discussion started by: enforcer
10 Replies
LEARN ABOUT DEBIAN
combine
COMBINE(1)COMBINE(1)NAME
combine - combine sets of lines from two files using boolean operations
SYNOPSIS
combine file1 and file2
combine file1 not file2
combine file1 or file2
combine file1 xor file2
_ file1 and file2 _
_ file1 not file2 _
_ file1 or file2 _
_ file1 xor file2 _
DESCRIPTION
combine combines the lines in two files. Depending on the boolean operation specified, the contents will be combined in different ways:
and Outputs lines that are in file1 if they are also present in file2.
not Outputs lines that are in file1 but not in file2.
or Outputs lines that are in file1 or file2.
xor Outputs lines that are in either file1 or file2, but not in both files.
"-" can be specified for either file to read stdin for that file.
The input files need not be sorted, and the lines are output in the order they occur in file1 (followed by the order they occur in file2
for the two "or" operations). Bear in mind that this means that the operations are not commutative; "a and b" will not necessarily be the
same as "b and a". To obtain commutative behavior sort and uniq the result.
Note that this program can be installed as "_" to allow for the syntactic sugar shown in the latter half of the synopsis (similar to the
test/[ command). It is not currently installed as "_" by default, but you can alias it to that if you like.
SEE ALSO join(1)AUTHOR
Copyright 2006 by Joey Hess <joey@kitenet.net>
Licensed under the GNU GPL.
moreutils 2012-04-09 COMBINE(1)
02-25-2008
