Check into the command 'comm', which takes 2 files or pipes of binary sorted lines, and marks them for one of three columns: a-only, b-only or both. It slides lines left to columns 2 and 3 using 1 or 2 tabs. If you option it -3, it removes all lines in the both column, -13 says remove a and both, leaving no tabs and just what is in file b only. Think of it as robust set arithmetic. In ksh and bash, a neat form sorting on a generated name pipe is:
The LC_ALL not C can upset newer sort versions so the sort order can be very strange if not broken.
You can easily post-process the comm output to differentiate a-not-b from b-not-a. The sort input does not need to be a file, it could be:
Last edited by DGPickett; 02-27-2012 at 06:43 PM..
I have a schell script that runs continously on an AIX system. It is actually started from another shell script with the "ksh -x" command and then I just write the output to a log file. This causes the log files to be filled with mostly useless information. I would like to modify this script to... (2 Replies)
Please help me in writing the script for sending an attachment through email.(For example my text file name is :abc.txt and it is in directory d:/abc) (1 Reply)
hi guys,
I need a shell script to send mail automatically to my personal mail id like xxxx@hotmail.com but while experimenting with "mail" command I faced following problems.
cat text1.txt | mail -s 'test mail' xxxx@hotmail.com
command successfully executed
but while
checking for... (4 Replies)
hi I need help urgently...i need to write a shell script which can solve the following problem....its urgent plz help me out coz m totally newbie in shell scripting....
the problem is:
Suppose I have a folder called logs. whenever some error occurs some correspondence error file is generated.
I... (4 Replies)
Hi,
I have shell script which checks the filesystem check but does not send the mail. I might be missing something very simple.. could you please help?
#!/bin/sh
_servers="machine name"
_out="/tmp/output.$$"
_email="me@there.com"
_sub="Disk Space Report $(date)"
_mail=/usr/bin/mail... (5 Replies)
Hello All,
I m trying to send mail from my unix script,
I have used the below command
mailx -s 'hi' email address < temp.txt
It is not giving me any error,but I couldn't receive the mail
Can you please help me.
Many Thanks,
Pragyan (6 Replies)
I am in need of a script that will send out emails while going through a NAT. What I have that works is as follows:
display_remote_IP | sort | uniq | while read i
do
FOUND=0
for IP in `echo $ACCEPTABLEIP`
do
if ; then
FOUND=1... (2 Replies)
I have make an menu in which first option is to start and second is to stop the services
echo "Please enter the appropriate choice for doing the operations"
echo "
1) STOP Services
2) START Services
case $choice in
1)
... (1 Reply)
Hello every one.
I use mutt :
"mpack -s "Test" /home/pi/Pictures/2018-10-05_23_10_40.jpg my_email_addres "
to send me a particular picture with the name of the data+jpg in a pictures folder, but this folder I use it for a timelapse proyect with more pictures , and what I need is... (2 Replies)
Discussion started by: maxbcn
2 Replies
LEARN ABOUT OSX
comm
COMM(1) BSD General Commands Manual COMM(1)NAME
comm -- select or reject lines common to two files
SYNOPSIS
comm [-123i] file1 file2
DESCRIPTION
The comm utility reads file1 and file2, which should be sorted lexically, and produces three text columns as output: lines only in file1;
lines only in file2; and lines in both files.
The filename ``-'' means the standard input.
The following options are available:
-1 Suppress printing of column 1.
-2 Suppress printing of column 2.
-3 Suppress printing of column 3.
-i Case insensitive comparison of lines.
Each column will have a number of tab characters prepended to it equal to the number of lower numbered columns that are being printed. For
example, if column number two is being suppressed, lines printed in column number one will not have any tabs preceding them, and lines
printed in column number three will have one.
The comm utility assumes that the files are lexically sorted; all characters participate in line comparisons.
ENVIRONMENT
The LANG, LC_ALL, LC_COLLATE, and LC_CTYPE environment variables affect the execution of comm as described in environ(7).
EXIT STATUS
The comm utility exits 0 on success, and >0 if an error occurs.
SEE ALSO cmp(1), diff(1), sort(1), uniq(1)STANDARDS
The comm utility conforms to IEEE Std 1003.2-1992 (``POSIX.2'').
The -i option is an extension to the POSIX standard.
HISTORY
A comm command appeared in Version 4 AT&T UNIX.
BUGS
Input lines are limited to LINE_MAX (2048) characters in length.
BSD January 26, 2005 BSD