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1. Shell Programming and Scripting
Hello gurus - I must be missing something, or there is a better way - pls enlighten me
I'm on a Solaris 10 vm running the following pipeline to reduce some apache logs (actually lynx dumps of /server-status/ when threads are above a threshold) to a set of offending DDoS IP addresses.
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2. Shell Programming and Scripting
hello
I want to check on first column duplicates and print the unique first and second columns
My trial output is not generating what I needed, i.e the second column.
thanks in advance (5 Replies)
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3. Shell Programming and Scripting
I have a master list of servers. I also have a list of servers I'm not supposed to touch. I'm trying to filter out the list servers that I'm not supposed to touch from the master list of servers, so I will have a "master list of servers I can touch". When I try to filter these I'm not getting... (4 Replies)
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4. Ubuntu
Hello Everyone,
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5. Shell Programming and Scripting
When I do uniq -c on a list of sorted numbers,
for eg:
1
1
2
2
2
3
3
4
It outputs 2 1
3 2
2 3
1 4.
Now, is there a way to sort on the column that "uniq -c" produced? (2 Replies)
Discussion started by: prasanna1157
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6. Shell Programming and Scripting
The key is first field i want only uniq record for the first field in file.
I want the output as
or output as
Appreciate help on this (4 Replies)
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7. UNIX for Dummies Questions & Answers
Dear all,
It's not entirely clear to me from manpage the difference between them.
Why we still need "-u" flag?
- monkfan (3 Replies)
Discussion started by: monkfan
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8. HP-UX
All,
Can anybody provide me the links to the documentation on UniQPrint?
I need to prepare some documents to help my co-workers to learn UniQPrint.
Regards,
Vishal (0 Replies)
Discussion started by: vishal_ranjan
0 Replies
UNIQ(1) BSD General Commands Manual UNIQ(1)
NAME
uniq -- report or filter out repeated lines in a file
SYNOPSIS
uniq [-c | -d | -u] [-i] [-f num] [-s chars] [input_file [output_file]]
DESCRIPTION
The uniq utility reads the specified input_file comparing adjacent lines, and writes a copy of each unique input line to the output_file. If
input_file is a single dash ('-') or absent, the standard input is read. If output_file is absent, standard output is used for output. The
second and succeeding copies of identical adjacent input lines are not written. Repeated lines in the input will not be detected if they are
not adjacent, so it may be necessary to sort the files first.
The following options are available:
-c Precede each output line with the count of the number of times the line occurred in the input, followed by a single space.
-d Only output lines that are repeated in the input.
-f num Ignore the first num fields in each input line when doing comparisons. A field is a string of non-blank characters separated from
adjacent fields by blanks. Field numbers are one based, i.e., the first field is field one.
-s chars
Ignore the first chars characters in each input line when doing comparisons. If specified in conjunction with the -f option, the
first chars characters after the first num fields will be ignored. Character numbers are one based, i.e., the first character is
character one.
-u Only output lines that are not repeated in the input.
-i Case insensitive comparison of lines.
ENVIRONMENT
The LANG, LC_ALL, LC_COLLATE and LC_CTYPE environment variables affect the execution of uniq as described in environ(7).
EXIT STATUS
The uniq utility exits 0 on success, and >0 if an error occurs.
COMPATIBILITY
The historic +number and -number options have been deprecated but are still supported in this implementation.
SEE ALSO
sort(1)
STANDARDS
The uniq utility conforms to IEEE Std 1003.1-2001 (``POSIX.1'') as amended by Cor. 1-2002.
HISTORY
A uniq command appeared in Version 3 AT&T UNIX.
BSD
December 17, 2009 BSD