I have a directory with permissions set 777, and some gumby has dumped a bunch of files and directories in there.
I don't own the culprit files or directories, but do own the containing directory - Is there some way I can delete this other user's files?
The other interesting thing is that... (5 Replies)
I have a directory full of text data files.
Unfortunately I need to get rid of the 7th and 8th line from them all so that I can input them into a GIS application.
I've used an awk script to do one at a time but due to the sheer number of files I need some kind of loop mechanism to automate... (3 Replies)
There are a lot of ways to extract text from between two strings, but what if those strings occur multiple times and you only want the text from the first two strings? I can't seem to find anything to work here. I'm using sed to process the text after it's extracted, so I prefer a sed answer, but... (4 Replies)
Hello!
I need to delete one line in a file which matches one very precise instance of a string only. When searching the forum I unfortunately only found a solution which would delete each line on which a particular string occurs.
Let's assume I have a file composed of thousands of lines... (4 Replies)
Hi all
I have two files X.txt and Y.txt. The file format of X.txt is :
madras is also the fountainhead of the theosophical movement which spread worldwide .
and second file Y.txt is of the format:
madra|s|nsubj is|cop also|advmod the|det fountainhead|empty of|prep the|det... (3 Replies)
Hi all,
I am still learning my way around unix commands and I have the following question.
I have a website and I want to search for all the html pages that don't contain a certain js file. The file I am searching for is located under /topfolder/js/rules.js . So I assume in my grep search I... (5 Replies)
I need to be able to search for a beginning line header, then use grep or something else to get the very next instance of a particular string, which will ALWAYS be in "Line5". What I have is some data that appears like this:
Line1
Line2
Line3
Line4
Line5
Line6
Line7
Line1
Line2
...... (4 Replies)
Me and a friend are working on a project, and We have to create a script that can go into a file, and replace all occurances of a certain expression/word/letter with another using Sed. It is designed to go through multiple tests replacing all these occurances, and we don't know what they will be so... (1 Reply)
So I want to skim through all folders (ongoing from the curr dir) and delete all files that contain the string:
"in conflikt standing copy".
Is this possible WITH DOS ? (1 Reply)
Discussion started by: pasc
1 Replies
LEARN ABOUT BSD
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 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.
-jn m Join on the mth field of file n. If n is missing, use the mth field in each file.
-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)