Hi,
I am starting out to program on Unix, having had experience in C and C++ in DOS. I would like to know, of these three, which is the best book for learning C programming in Unix:
Advanced Unix Programming by Marc Rochkind
Advanced Unix Programming by Warren Gay
Advanced Programming in... (6 Replies)
I am very new to Unix. What are the similiarities and differences between ScoUnix and AIX5 if any? Where might i find the information? Which is better? (1 Reply)
Hi, There are two files in UNIX system with some lines are exactly the same, some lines are not.
I want to compare these two files.The 2 files (both the files have data in Column format )should be compared row wise and any difference in data for a particular row should lead to storage of data of... (32 Replies)
i want to know the similarities and disimilarities of Unix and Windows file systems . methods of file , file orgsnization , meaning of file extension , file and disk fragments :confused::confused: (1 Reply)
Hello,
I have 2 files and I want them to be compared in a specific fashion
file1:
A_1200_1250
A_1251_1300
B_1301_1350
B_1351_1400
B_1401_1450
C_1451_1500 and so on...
file2:
1210 1305 1260 1295
1400 1500 1450 1495
Now The script should look for "1200" from A_1200_1250 of... (8 Replies)
Hi all,
I want to compare two files with same number of rows and columns with records in same order.
Just want to highlight the differences in the column values if any.
file A
1,kolkata,19,ab
2,delhi,89,cd
3,bangalore,56,ef
file2:
1,kolkata,21,ab
2,mumbai,89,gh
3,bangalore,11,kl... (9 Replies)
Hi All ,
As I am new to unix scripting ,I need a help regarding unix scripting .I have two .txt files .One is source file and another is target file.I need a script through which I can compare those two files.I need a automated comparison report in a directory after comparing between source &... (2 Replies)
Hi All ,
I am aware of unix command ,but not comforable in putting together in script level.I came to situation where I need to compare between two .txt files fieldwise and need a mismatch report. As I am new to unix script arena ,if anyone can help in the below scenario that will be really... (9 Replies)
Discussion started by: STCET22
9 Replies
LEARN ABOUT MINIX
join
JOIN(1) General Commands Manual JOIN(1)NAME
join - relational database operator
SYNOPSIS
join [-an] [-e s] [-o list] [-tc] file1 file2
DESCRIPTION
Join forms, on the standard output, a join of the two relations specified by the lines of file1 and file2. If file1 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.
Fields are normally separated by blank, tab or newline. In this case, multiple separators count as one, and leading separators are dis-
carded.
These options are recognized:
-an In addition to the normal output, produce a line for each unpairable line in file n, where n is 1 or 2.
-e s Replace empty output fields by string s.
-o list
Each output line comprises the fields specified in list, each element of which has the form n.m, where n is a file number and m is a
field number.
-tc Use character c as a separator (tab character). Every appearance of c in a line is significant.
SEE ALSO sort(1), comm(1), awk(1).
BUGS
With default field separation, the collating sequence is that of sort -b; with -t, the sequence is that of a plain sort.
The conventions of join, sort, comm, uniq, look and awk(1) are wildly incongruous.
7th Edition April 29, 1985 JOIN(1)