04-17-2010
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I've looked at the join command which is able to perform what I need on two rows with a common field, however if I have more than two rows I need to join all of them.
Thus I have one file with multiple rows to be joined on an index number:
1 randomtext1
2 rtext2
2 rtext3
3 rtext4
3 rtext5... (5 Replies)
Discussion started by: crimper
5 Replies
2. Shell Programming and Scripting
i want to replace mistaken quotes in line starting with tag 300 and relocate the quote in the correct position so the input is
223;25
224;20100428064823;1;0;0;0;0;0;0;0;8;1;3;9697;18744;;;;;;;;;;;;
300;X;Event:... (3 Replies)
Discussion started by: wradwan
3 Replies
3. Shell Programming and Scripting
Hi there, I have the following output,
# raidctl -l
RAID Volume RAID RAID Disk
Volume Type Status Disk Status
------------------------------------------------------
c0t1d0 IM OK c0t1d0 OK
... (4 Replies)
Discussion started by: rethink
4 Replies
4. Shell Programming and Scripting
Greetings. I am using SED to cleanup files that are laid out like so:
ReceiverID=028936004663
SerialNumber=WD-WCAV95708405
Currenttemp=44C
PowerOnHours=3663h
ReceiverID=028923894902
SerialNumber=WD-WCAV9A766701
Currenttemp=49C
PowerOnHours=2215h
My boss wants files like this one... (5 Replies)
Discussion started by: alan
5 Replies
5. Shell Programming and Scripting
Please see the following code, between "status" and "OK" exists many spaces, I want to get status OK . how to ignore multi spaces? If tab exists in the spaces, how to ignore it ?
Is there other commands can replace cut?
$ echo 'drv status OK'| cut... (3 Replies)
Discussion started by: 915086731
3 Replies
6. Shell Programming and Scripting
Hey guys. I know pratically 0 about Linux, so could anyone please give me instructions on how to accomplish this ?
The distro is RedHat 4.1.2 and i need to find and replace a multiple lines string in several php files across subdirectories.
So lets say im at root/dir1/dir2/ , when i execute... (12 Replies)
Discussion started by: spfc_dmt
12 Replies
7. Shell Programming and Scripting
Background:
I am writing a script to help me automate tweaks and things I apply to a custom Android rom I developed. I am on the very last part of my script, and I am stuck trying to find the right command to do what I seek.
When I build roms from source, a file called updater-script is... (8 Replies)
Discussion started by: Silverlink34
8 Replies
8. Shell Programming and Scripting
If a file has following kind of data, comma delimited
1,2,3,4
1
1
1,2,3,4
1,2
2
2,3,4
My required output must have only 4 columns with comma delimited
1,2,3,4
111,2,3,4
1,222,3,4
I have tried many awk command using ORS="" but couldnt progress (10 Replies)
Discussion started by: mdkm
10 Replies
9. Shell Programming and Scripting
Im looking for a bash solution that will use Regular Expressions (not perl, sed or awk) to check the example data below and then give me a status.
which would be just simply Match or Mismatch.
SYS PS1 is present.
Fan status: Normal
Input Voltage status: Normal
... (5 Replies)
Discussion started by: popeye
5 Replies
10. Shell Programming and Scripting
Hi,
I want to know if there is any simple approach to SUM a field based on group by of different fields
for e.g.
file1.txt contains below data
20160622|XXX1||50.00||50.00|MONEY|Plan1|
20160622|XXX1||100.00||100.00|MONEY|Plan1|
20160623|XXX1||25.00||25.00|MONEY|Plan1|... (3 Replies)
Discussion started by: cnu_theprince
3 Replies
LEARN ABOUT DEBIAN
plan9-join
JOIN(1) General Commands Manual JOIN(1)
NAME
join - relational database operator
SYNOPSIS
join [ options ] file1 file2
DESCRIPTION
Join forms, on the standard output, a join of the two relations specified by the lines of file1 and file2. If one of the file names is the
standard input is used.
File1 and file2 must be sorted in increasing ASCII collating sequence on the fields on which they are to be joined, normally the first in
each line.
There is one line in the output for each pair of lines in file1 and file2 that have identical join fields. The output line normally con-
sists of the common field, then the rest of the line from file1, then the rest of the line from file2.
Input fields are normally separated spaces or tabs; output fields by space. In this case, multiple separators count as one, and leading
separators are discarded.
The following options are recognized, with POSIX syntax.
-a n In addition to the normal output, produce a line for each unpairable line in file n, where n is 1 or 2.
-v n Like -a, omitting output for paired lines.
-e s Replace empty output fields by string s.
-1 m
-2 m Join on the mth field of file1 or file2.
-jn m Archaic equivalent for -n m.
-ofields
Each output line comprises the designated fields. The comma-separated field designators are either 0, meaning the join field, or
have the form n.m, where n is a file number and m is a field number. Archaic usage allows separate arguments for field designators.
-tc Use character c as the only separator (tab character) on input and output. Every appearance of c in a line is significant.
EXAMPLES
sort /etc/passwd | join -t: -1 1 -a 1 -e "" - bdays
Add birthdays to the /etc/passwd file, leaving unknown birthdays empty. The layout of /adm/users is given in passwd(5); bdays con-
tains sorted lines like
tr : ' ' </etc/passwd | sort -k 3 3 >temp
join -1 3 -2 3 -o 1.1,2.1 temp temp | awk '$1 < $2'
Print all pairs of users with identical userids.
SOURCE
/src/cmd/join.c
SEE ALSO
sort(1), comm(1), awk(1)
BUGS
With default field separation, the collating sequence is that of sort -b -ky,y; with -t, the sequence is that of sort -tx -ky,y.
One of the files must be randomly accessible.
JOIN(1)