03-18-2015
Have you tried using character classes in regular expression?
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1. Shell Programming and Scripting
Hi,
I have a file having some thousand records with the following sort of lines:
Error: Failed to get order data
Order: PO-BBBTGZE
Error: No CLI
Error: Failed to get order data
Order: PO-SBDJUZA
Order: PO-XBBIDEN
Error: No CLI
Error: Failed to get order data
Order: PO-BBDJUTQ
Order:... (2 Replies)
Discussion started by: damansingh
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2. UNIX for Dummies Questions & Answers
Hi,
I'm trying to find the nearest match between two columns of numbers, e.g.
1,1
10,8
30,50
20,100
and the search could be e.g. 20,20
returning 10,8 - i.e. 20-10 = 10 and 20-8 = 12 totalling 22, and hence being the nearest match.
any ideas?
thanks a lot, (1 Reply)
Discussion started by: bogu0001
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All
i am struggling to raplace some text in a line between two (closest) patterns ,
line="/home/usr/bin/:/home/usr/devuser,n1.9/bin:/home/usr/root/bin"
i want to replace "devuser,n1.9" with "NEWVAL", basically all teh text from "devuser" until nearest '/' with some new text.
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Hello,
let's start by giving you guys a few examples of the text:
"READ /TEXT123/ABC123"
"READ /TEXT123/ABC123/"
"READ TEXT123/ABC123"
"READ TEXT123/ABC123/"
"READ TEXT123/TEXT456/ABC123"
"READ /TEXT123/TEXT456/ABC123"
"READ /TEXT123/TEXT456/ABC123/"
TEXT and ABC can be and I... (5 Replies)
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5. Shell Programming and Scripting
Hello Guys,
I'm very new on here and require some help matching up and printing some columns using awk.
I have two text files. The first file has Longitude data in column 1 (lon.txt) and the second one (node.txt) has again another Longitude data in column 1 (not exact as the first one) + in... (7 Replies)
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Hi experts , im new to Unix,AWK ,and im just not able to get this right.
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Im using the command below , but thats not the output that i want. it only prints the odd and even numbers.
awk '{if(NR%2){print $0 > "1"}else{print $0 > "2"}}'
Im hoping for something like this
file1:
Text hi this is just a test
text1 text2 text3 text4 text5 text6
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8. Shell Programming and Scripting
Gents
I have this input file
file1 (uniq records)
54503207851 170211240
54503207911 170210837
54503208111 170215105
54503208112 170215210
54655210011 170223140
54655210091 170223738
54655210172 170224355
54655210251 170224741
54655210331 170225039
54655210411 170225505
54655210492... (13 Replies)
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I have two files. One is consisting of one line, with data separated by spaces and each number appearing only once.
The other is consisting of one column and multiple lines which can have some numbers appearing more than once.
It looks something like this:
file 1:
20 700 15 30
file2:
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10. Shell Programming and Scripting
I have a file with contents as shown in file.texi
Would like to keep only the sections that have inlineifset till the empty line is reached. Finally replace the
following string with a space
@inlineifset{mrg, @opar{@bullet{}
I had written the following command but it messed my file
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grep(1) General Commands Manual grep(1)
Name
grep, egrep, fgrep - search file for regular expression
Syntax
grep [option...] expression [file...]
egrep [option...] [expression] [file...]
fgrep [option...] [strings] [file]
Description
Commands of the family search the input files (standard input default) for lines matching a pattern. Normally, each line found is copied
to the standard output.
The command patterns are limited regular expressions in the style of which uses a compact nondeterministic algorithm. The command patterns
are full regular expressions. The command uses a fast deterministic algorithm that sometimes needs exponential space. The command pat-
terns are fixed strings. The command is fast and compact.
In all cases the file name is shown if there is more than one input file. Take care when using the characters $ * [ ^ | ( ) and in the
expression because they are also meaningful to the Shell. It is safest to enclose the entire expression argument in single quotes ' '.
The command searches for lines that contain one of the (new line-separated) strings.
The command accepts extended regular expressions. In the following description `character' excludes new line:
A followed by a single character other than new line matches that character.
The character ^ matches the beginning of a line.
The character $ matches the end of a line.
A . (dot) matches any character.
A single character not otherwise endowed with special meaning matches that character.
A string enclosed in brackets [] matches any single character from the string. Ranges of ASCII character codes may be abbreviated
as in `a-z0-9'. A ] may occur only as the first character of the string. A literal - must be placed where it can't be mistaken as
a range indicator.
A regular expression followed by an * (asterisk) matches a sequence of 0 or more matches of the regular expression. A regular
expression followed by a + (plus) matches a sequence of 1 or more matches of the regular expression. A regular expression followed
by a ? (question mark) matches a sequence of 0 or 1 matches of the regular expression.
Two regular expressions concatenated match a match of the first followed by a match of the second.
Two regular expressions separated by | or new line match either a match for the first or a match for the second.
A regular expression enclosed in parentheses matches a match for the regular expression.
The order of precedence of operators at the same parenthesis level is the following: [], then *+?, then concatenation, then | and new
line.
Options
-b Precedes each output line with its block number. This is sometimes useful in locating disk block numbers by context.
-c Produces count of matching lines only.
-e expression
Uses next argument as expression that begins with a minus (-).
-f file Takes regular expression (egrep) or string list (fgrep) from file.
-i Considers upper and lowercase letter identical in making comparisons and only).
-l Lists files with matching lines only once, separated by a new line.
-n Precedes each matching line with its line number.
-s Silent mode and nothing is printed (except error messages). This is useful for checking the error status (see DIAGNOSTICS).
-v Displays all lines that do not match specified expression.
-w Searches for an expression as for a word (as if surrounded by `<' and `>'). For further information, see only.
-x Prints exact lines matched in their entirety only).
Restrictions
Lines are limited to 256 characters; longer lines are truncated.
Diagnostics
Exit status is 0 if any matches are found, 1 if none, 2 for syntax errors or inaccessible files.
See Also
ex(1), sed(1), sh(1)
grep(1)