10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi ,
My UNIX system is SUN Solaris.
I am trying to do a simple thing as described below.
I have a PIPE delimited file that has header and trailer. So the file is something like below:
Test1.txt looks like something below:
field_data1|field_data2|and some more data --Header
... (5 Replies)
Discussion started by: Saanvi1
5 Replies
2. Shell Programming and Scripting
Hi,
I am using SUN SOLARIS (SunOS sun4v sparc SUNW, T5240).
I have a huge data file with header and trailer. This file gets used into an ETL process. ETL skips the header record (which is the first record of the file) and loads the rest of the record. The file can be delimited (comma,... (5 Replies)
Discussion started by: Saanvi1
5 Replies
3. UNIX for Dummies Questions & Answers
I have several las files with a header and each file start Version and text and before the data starts end up with ~Ascii, then the numbers starts:
-------------------------------------------------------------------------
~Version
.....text....
~Ascii
2 abc 230 1 name
1 abc 400 1... (17 Replies)
Discussion started by: tk2000
17 Replies
4. UNIX for Dummies Questions & Answers
I have several las files with a header and each file start Version and text and before the data starts end up with ~Ascii, then the numbers starts:
-------------------------------------------------------------------------
Code:
~Version
.....text....
~Ascii
2 abc 230 1 name
1 abc ... (1 Reply)
Discussion started by: tk2000
1 Replies
5. UNIX for Dummies Questions & Answers
How to sort a tab delimited file first on col1 and then on col2. Also I need to keep the header intact.
file.txt
val1 val2 val3 val4
a b c d
m n o p
e f g h
i j k l
... (3 Replies)
Discussion started by: mary271
3 Replies
6. Shell Programming and Scripting
Hi,
Please help with this problem. Somehow does not work for me.
test.txt
CHR SNP BP A1 C_A C_U A2 CHISQ P OR
19 rs10401969 19268718 C 222 890 T 0.03462 0.8524 0.9857
1 rs10873889 ... (4 Replies)
Discussion started by: genehunter
4 Replies
7. Shell Programming and Scripting
Hi,
I'm ssh'ing into a server using ruby and sending a one-liner to retrieve the output of the 'ps aux' command. So far, this is what I have:
ps aux | sort -r -n -k3 | sed -e '1s/^/this is first\n/' | head -n10
With this I can insert a line at position 1, but I would rather extract the... (3 Replies)
Discussion started by: gekeha
3 Replies
8. UNIX for Dummies Questions & Answers
So, I have a file that has some duplicate lines. The file has a header line that I would like to keep at the top.
I could do this by extracting the header from the file, 'sort -u' the remaining lines, and recombine them. But they are quite big, so if there is a way to do it with a single... (1 Reply)
Discussion started by: Digby
1 Replies
9. UNIX for Dummies Questions & Answers
Hello,
I have a header which I have to add to a sorted file, however if I use
cat header sortedfile > newfile, the operation takes 2 minutes as the sorted file is over 400mb.
I have noticed that when I sort the 400mb unsorted file, this only takes 14 seconds to create the output.
As... (2 Replies)
Discussion started by: clarcombe
2 Replies
10. Shell Programming and Scripting
Do somebody have idea How to sort standard input without first line which in my case it's header
Example:
Cnt|VT |STAT|Date |Time |From |Alert Message |Instance |
125| | | 260308 |160026 |ZAMUAT2|ifpollq... (8 Replies)
Discussion started by: pp56825
8 Replies
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)