Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data:
I am trying to complete a script which will allow me to find:
a) reads a value from the keyboard. (ask the user to provide a value)
b) reads each line from the "sercel_output2.3" file in a loop until it finds the value you are looking for
c) counts the occurrences of the value provided
Unitl here I can run the script but I am having trouble with the following two points. I can not use awk
d) fiind the maximum value in the column(there is only one column in the file)
e) calculate the average of the column. ( I only have one point after the decimal)
2. Relevant commands, code, scripts, algorithms:
can not use awk
3. The attempts at a solution (include all code and scripts): 4. Complete Name of School (University), City (State), Country, Name of Professor, and Course Number (Link to Course):
Southern Alberta Institue of Technology Calgary Alberta Canada
Patricia Casto Advanced Linux
Note: Without school/professor/course information, you will be banned if you post here! You must complete the entire template (not just parts of it).
Last edited by DukeNuke2; 01-31-2012 at 03:52 AM..
Hi friends
I have 100 files in my directory. Each file look like this..
Temp1 Temp2 Temp3
MAS 1 2 3
MAS 4 5 6
MAS 7 8 9
Delhi 10 11 12
Delhi 13 14 15
Delhi 16 17 ... (4 Replies)
Hi Friends,
In continuation to my earlier post
https://www.unix.com/shell-programming-scripting/99166-script-find-average-given-column-also-specified-number-rows.html
I am extending my problem as follows.
Input:
Column1 Column2
MAS 1
MAS 4 ... (2 Replies)
Hello,
I have 2 columns (1st column has multiple entries but the corresponding values in the column 2 may be the same or different.) however I want to extract unique values for each entry in column 1 by assigning the max value from column 2
SDF4 -0.211654
SDF4 0.978068
... (1 Reply)
I am trying to find the minimum maximum and average from one file which has values
Received message from https://www.demandmatrix.net/app/dm/xml] in milliseconds.
Received message from https://www.demandmatrix.net/app/dm/xml] in milliseconds.
Received message from... (5 Replies)
Hi Evreyone
below is the sample data i have in one file
Wed Jan 30 7 :04:50 2013 type1 419990050 101 ms
Wed Jan 30 7 :04:58 2013 type1 488226363 101 ms
Wed Jan 30 7 :05:03 2013 type1 431525334 101 ms
Wed Jan 30 7 :05:48 2013 type2 400676615 101 ms
Wed Jan 30 8 :09:46... (3 Replies)
Dear Unix Gurus,
I have a text file with multiple columns, for example, see sample.txt below
0 1 301
1 4 250
2 6 140
3 2 610
7 1 180I want to find the maximum in, say, column 3, normalise all the values to this maximum value (to 4 decimal places) and spit everything into a new... (2 Replies)
Hello,
I need to find out the minimum and maximum values based on specific column, and then print out the entire row with the max value.
Infile.txt:
scf6 290173 290416 . + X_047241 T_00113118-1
scf6 290491 290957 . + X_047241 T_00113118-2
scf6 290898 290957 . + X_047241 T_00113119-3
scf6... (2 Replies)
Hello everyone,
I am using ksh on Solaris 10 and I'm gathering data in a CSV file that looks like this:
20170628-23:25:01,1,0,0,1,1,1,1,55,55,1
20170628-23:30:01,1,0,0,1,1,1,1,56,56,1
20170628-23:35:00,1,0,0,1,1,2,1,57,57,2
20170628-23:40:00,1,0,0,1,1,1,1,58,58,2... (6 Replies)
Need your support for below. Please help to get required output
If column 5 is INV then only consider column1 and take out duplicates/identical rows/values from column1 and then put minimum value of column6 in column7 and put maximum value in column 8 and then need to do subtract values of... (7 Replies)
Discussion started by: as7951
7 Replies
LEARN ABOUT PLAN9
regex
regex(1F) FMLI Commands regex(1F)NAME
regex - match patterns against a string
SYNOPSIS
regex [-e] [ -v "string"] [ pattern template] ... pattern [template]
DESCRIPTION
The regex command takes a string from the standard input, and a list of pattern / template pairs, and runs regex() to compare the string
against each pattern until there is a match. When a match occurs, regex writes the corresponding template to the standard output and
returns TRUE. The last (or only) pattern does not need a template. If that is the pattern that matches the string, the function simply
returns TRUE. If no match is found, regex returns FALSE.
The argument pattern is a regular expression of the form described in regex(). In most cases, pattern should be enclosed in single quotes
to turn off special meanings of characters. Note that only the final pattern in the list may lack a template.
The argument template may contain the strings $m0 through $m9, which will be expanded to the part of pattern enclosed in ( ... )$0 through
( ... )$9 constructs (see examples below). Note that if you use this feature, you must be sure to enclose template in single quotes so
that FMLI does not expand $m0 through $m9 at parse time. This feature gives regex much of the power of cut(1), paste(1), and grep(1), and
some of the capabilities of sed(1). If there is no template, the default is $m0$m1$m2$m3$m4$m5$m6$m7$m8$m9.
OPTIONS
The following options are supported:
-e Evaluates the corresponding template and writes the result to the standard output.
-v "string" Uses string instead of the standard input to match against patterns.
EXAMPLES
Example 1: Cutting letters out of a string
To cut the 4th through 8th letters out of a string (this example will output strin and return TRUE):
`regex -v "my string is nice" '^.{3}(.{5})$0' '$m0'`
Example 2: Validating input in a form
In a form, to validate input to field 5 as an integer:
valid=`regex -v "$F5" '^[0-9]+$'`
Example 3: Translating an environment variable in a form
In a form, to translate an environment variable which contains one of the numbers 1, 2, 3, 4, 5 to the letters a, b, c, d, e:
value=`regex -v "$VAR1" 1 a 2 b 3 c 4 d 5 e '.*' 'Error'`
Note the use of the pattern '.*' to mean "anything else".
Example 4: Using backquoted expressions
In the example below, all three lines constitute a single backquoted expression. This expression, by itself, could be put in a menu defini-
tion file. Since backquoted expressions are expanded as they are parsed, and output from a backquoted expression (the cat command, in this
example) becomes part of the definition file being parsed, this expression would read /etc/passwd and make a dynamic menu of all the login
ids on the system.
`cat /etc/passwd | regex '^([^:]*)$0.*$' '
name=$m0
action=`message "$m0 is a user"`'`
DIAGNOSTICS
If none of the patterns match, regex returns FALSE, otherwise TRUE.
NOTES
Patterns and templates must often be enclosed in single quotes to turn off the special meanings of characters. Especially if you use the
$m0 through $m9 variables in the template, since FMLI will expand the variables (usually to "") before regex even sees them.
Single characters in character classes (inside []) must be listed before character ranges, otherwise they will not be recognized. For exam-
ple, [a-zA-Z_/] will not find underscores (_) or slashes (/), but [_/a-zA-Z] will.
The regular expressions accepted by regcmp differ slightly from other utilities (that is, sed, grep, awk, ed, and so forth).
regex with the -e option forces subsequent commands to be ignored. In other words, if a backquoted statement appears as follows:
`regex -e ...; command1; command2`
command1 and command2 would never be executed. However, dividing the expression into two:
`regex -e ...``command1; command2`
would yield the desired result.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO awk(1), cut(1), grep(1), paste(1), sed(1), regcmp(3C), attributes(5)SunOS 5.10 12 Jul 1999 regex(1F)