Please become accustomed to provide decent context info of your problem.
It is always helpful to carefully and detailedly phrase a request, and to support it with system info like OS and shell, related environment (variables, options), preferred tools, adequate (representative) sample input and desired output data and the logics connecting the two including your own attempts at a solution, and, if existent, system (error) messages verbatim, to avoid ambiguities and keep people from guessing.
What exactly is going wrong with your code snippet - after having added a semicolon in front of the do? And, except this being incredibly inefficient. When I run it, it gives me the file2 lines for the names in file1.
Hi all,
I'm new to awk and I'm experiencing syntax error that I don't know how to resolve. Hopefully some experts in this forum can help me out.
I created an awk file that look like this:
$ cat myawk.awk
BEGIN {
VAR1=PATTERN1
VAR2=PATTERN2
}
/VAR1/ { flag=1 }
/VAR2/ { flag=0 }
{... (7 Replies)
Hi All, need some help with writing a shell script. I tried to search this forum but couldn't find exactly what i want. If you all know any reference link i can read and refer to solve my issue, let me know.
I got 1 file i.e: example.txt. It is content list of data, as below example.
What... (2 Replies)
Dear all,
How can I print results (and of course, send this result to the text file) of sed command.
I mean, I want to know which lines of which files sed command has found.
For e.g, the result text file should contains:
file1.c:line 12
file2.h:line 14
file2.h:line 37
Please help me (10 Replies)
Hello ,
When using vim, can ctag and cscope support recording search results and displaying the history results ? Once I jump to one tag, I can use :tnext to jump to next tag, but how can I display the preview search result? (0 Replies)
print from an ip_list file containing 300 ip's
the directory of the results is /var/tmp/1.1.1.1
the 1.1.1.1 will change according to the /tmp/ip_list file i.e
1.1.1.1
2.2.2.2
3.3.3.3
I need the results from /var/tmp/1.1.1.1 once done the script goes to the next ip address in... (11 Replies)
I'm interested in writing a report script using BASH that searches all of the files in a particular directory for a keyword and printing a list of files containing this string...
In fact this reporting script would have searches for multiple keywords, so I'm interested in making multiple... (2 Replies)
Hey,
I added an animation switch on the search results page; so by default the thread previews are off, but if you want to look at them, just click on the green button and the thread previews will turn on (and back off).
See image and attached animation:
... (1 Reply)
Discussion started by: Neo
1 Replies
LEARN ABOUT FREEBSD
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, lines only in file1.
-2 Suppress printing of column 2, lines only in file2.
-3 Suppress printing of column 3, lines common to both.
-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.
BSD December 12, 2009 BSD