10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi, I have multiple files on a directory with the following content:
blahblah
blahblah
hostname server1
blahblah
blahblah
---BEGIN---
aaa
bbb
ccc
ddd
---END---
blahblah
blahblah
blahblah
I would like to filter all the files with awk or sed or something else so I can get below... (6 Replies)
Discussion started by: bayupw
6 Replies
2. Shell Programming and Scripting
Hi All,
I'd always appreciate all helps from this website. I would like to relocate strings based on the index number from an index file.
Index numbers are shown on the first column in the index file (index.txt) and I would like to relocate "path" based on index numbers. Paths are placed... (11 Replies)
Discussion started by: jypark22
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3. Programming
Dear All,
I am having a requirement to find the difference between 2 files and generate a discrepancy report out of it as an html page. I prefer using diff -y file1 file2 since it gives user friendly layout to know any discrepancy in the record and unique records among the 2 file. Here's how it... (12 Replies)
Discussion started by: Badhrish
12 Replies
4. UNIX for Dummies Questions & Answers
Here is my task, I feel sure this can be accomplished with see/awk but can't seem to figure out how.
I have large flat file from which I need to extract every case of a pairing of characters (GG) in this case PLUS the previous 20 characters. The output should be a list (which I plan to make... (17 Replies)
Discussion started by: Twinklefingers
17 Replies
5. Shell Programming and Scripting
Hi,
I have two files: a.doc and b.txt
I wish to search the strings from file b.txt in a.doc and want to highlight them in a.doc with different colours using Perl or bash./awk/sed?
Please guide me. :)
Thanks!!!!! (10 Replies)
Discussion started by: bioinfo
10 Replies
6. Shell Programming and Scripting
Below am trying to separate FA-7A:1, In output file it should display 7A 1
Command am using
Gives same output as below format:
22B7 10000000c9720873 0
22B7 10000000c95d5d8b 0
22BB 10000000c97843a2 0
22BB 10000000c975adbd 0
Not showing FA ports as required format... (5 Replies)
Discussion started by: aix_admin_007
5 Replies
7. Shell Programming and Scripting
Hi,
I am trying to get lines between the last occurrences of two patterns. I have files that have several occurrences of “Standard” and “Visual”. I will like to get the lines between “Standard” and “Visual” but I only want to retain only the last one e.g.
Standard
Some words
Some words
Some... (4 Replies)
Discussion started by: damanidada
4 Replies
8. Shell Programming and Scripting
Hi. I have to delete the content between all the occurrences of the xml tags in a single file.
For example:
* The tags <script>.....................</script> occurs more than once in the same file.
* It follows tagging rules meaning a start tag will be followed by an end tag. Will not have... (9 Replies)
Discussion started by: satheeshkumar
9 Replies
9. Shell Programming and Scripting
Hello i need some help with the usage of sed.
Situation : 2 textfiles, file.in , file.out
In the first textfile which is called file.in are the words for the substitution.
Every word is in a new-line like :
Firstsub
Secondsub
Thridsub
...
In the second textflie wich is called file.out is... (5 Replies)
Discussion started by: Kingbruce
5 Replies
10. UNIX for Dummies Questions & Answers
Dear Unix Gurus,
I've got a data file with a few hundred lines (see truncated sample)...
BEGIN_SCAN1
TASK_NAME=LA48 PDD Profiles
PROGRAM=ArrayScan
1.00 21.220E+00
2.00 21.280E+00
END_DATA
END_SCAN1
BEGIN_SCAN2
TASK_NAME=LA48 PDD Profiles
194.00 2.1870E+00
... (5 Replies)
Discussion started by: tintin72
5 Replies
REGEXP(6) Games Manual REGEXP(6)
NAME
regexp - regular expression notation
DESCRIPTION
A regular expression specifies a set of strings of characters. A member of this set of strings is said to be matched by the regular
expression. In many applications a delimiter character, commonly bounds a regular expression. In the following specification for regular
expressions the word `character' means any character (rune) but newline.
The syntax for a regular expression e0 is
e3: literal | charclass | '.' | '^' | '$' | '(' e0 ')'
e2: e3
| e2 REP
REP: '*' | '+' | '?'
e1: e2
| e1 e2
e0: e1
| e0 '|' e1
A literal is any non-metacharacter, or a metacharacter (one of .*+?[]()|^$), or the delimiter preceded by
A charclass is a nonempty string s bracketed [s] (or [^s]); it matches any character in (or not in) s. A negated character class never
matches newline. A substring a-b, with a and b in ascending order, stands for the inclusive range of characters between a and b. In s,
the metacharacters an initial and the regular expression delimiter must be preceded by a other metacharacters have no special meaning and
may appear unescaped.
A matches any character.
A matches the beginning of a line; matches the end of the line.
The REP operators match zero or more (*), one or more (+), zero or one (?), instances respectively of the preceding regular expression e2.
A concatenated regular expression, e1e2, matches a match to e1 followed by a match to e2.
An alternative regular expression, e0|e1, matches either a match to e0 or a match to e1.
A match to any part of a regular expression extends as far as possible without preventing a match to the remainder of the regular expres-
sion.
SEE ALSO
awk(1), ed(1), sam(1), sed(1), regexp(2)
REGEXP(6)