I need help really quick, this is due in an hour. Here is my new code, I just need to figure out how to get the user input to do the correct command, which is why I left the "if choice" blank...or should it be "if $choice" ?
read -p "How would you like the file to be sorted?
1) Alphabetically by name
2) By Land Area
3) By Population
Enter number choice here: " choice
read choice
if choice
then
awk '{ print $2, $3, $4 }' fifty_states.txt > states_alpha.txt
sort states_alpha.txt
fi
if choice
then
awk '{ print $2, $3, $4 }' fifty_states.txt > states_land.txt
sort -k +1 states_land.txt
fi
if choice
then
awk '{ print $2, $4, $3 }' fifty_states.txt > states_pop.txt
sort -k +1 states_pop.txt
fi
We are not going to do your homework for you.
I suggest again that you look at the man page for the test command so you can craft your if statements to look something like:
or
For e.g I have a file named "relation" which has three coloums i.e
JOHN MARY JACK
PETE ALISIA JONNY
TONY JACKIE VICTOR
If I do
grep -w 'JOHN' relation | awk '{print""$1" is husband of "$2" & father of "$3""}'
It gives out
JOHN i husband of MARY & father of JACK (which is desired... (7 Replies)
Hi,
I have a text file with data in that I wish to extract, assign to a variable and process through a loop.
Kind of the process that I am after:
1: Grep the text file for the values.
Currently using:
cat /root/test.txt | grep TESTING= | awk -F"=" '{ a = $2 } {print a}' | sort -u
... (0 Replies)
hi everyone, I am kind of new to this forum. I need help in sorting this data out accordingly, I am actually doing a traceroute application and wants my AS path displayed in front of my address like this;
192.168.1.1 AS28513 AS65534 AS5089 AS5089 .... till the last AS number and if possible sort... (8 Replies)
Hi, I'm running via PuTTY, in a BASH shell to do my work. I'm running calculations where steps are reported like this every 100 steps:
NSTEP = 249900 TIME(PS) = 249.900 TEMP(K) = 299.94 PRESS = 21.1
Etot = -12912.5557 EKtot = 4996.8780 EPtot = -17909.4336
... (6 Replies)
Hi,
I need an awk script (or whatever shell-construct) that would take data like below and get the max value of 3 column, when grouping by the 1st column.
clientname,day-of-month,max-users
-----------------------------------
client1,20120610,5
client2,20120610,2
client3,20120610,7... (3 Replies)
I have a question that I am at a loss to solve. I have 3 column tab-separated data, such as:
abs nmod+n+n-commitment-n 349.200023
abs nmod+n+n-a-commitment-n 333.306429
abs into+ns-j+vn-pass-rb-divide-v 295.57316
abs nmod+n+ns-commitment-n 182.085018
abs nmod+n+n-pledge-n ... (2 Replies)
Hi have a large spreadsheet which has 4 columns
APM00111803814 server_2 96085 Corp IT Desktop and Apps
APM00111803814 server_2 96085 Corp IT Desktop and Apps
APM00111803814 server_2 96034 Storage Mgmt Team
APM00111803814 server_2 96152 GWP... (6 Replies)
Please help me to get required output for both scenario 1 and scenario 2 and need separate code for both scenario 1 and scenario 2
Scenario 1
i need to do below changes only when column1 is CR and column3 has duplicates rows/values. This inputfile can contain 100 of this duplicated rows of... (1 Reply)
Example:
I have files in below format
file 1:
zxc,133,joe@example.com
cst,222,xyz@example1.com
File 2 Contains:
hxd
hcd
jws
zxc
cst
File 1 has 50000 lines and file 2 has around 30000 lines :
Expected Output has to be :
hxd
hcd
jws (5 Replies)
Discussion started by: TestPractice
5 Replies
LEARN ABOUT OPENSOLARIS
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 5.11 12 Jul 1999 regex(1F)