Corona688 posted an elegant solution for your original specification, that gets rid of excess spaces but it would not work right for the second sample.
In addition to what rbatte posted, another way to get rid of the leading space after the comma would be:
--
Note: this only works if there are exactly two fields, if there can be more you would need to add a third variable to the read command..
--
Another note, to get consistent results independent of input, the safest approach would be to use printf, rather than echo
Last edited by Scrutinizer; 03-29-2017 at 02:43 PM..
I'm attempting to create a KSH array out of a string like this: ",,,value1,value2,,"
I have created the array but I only get two elements, one for value1 and one for value2.
I have ended up with something like this but I don't like it:
set -A JUNK
xx=0
for i in $(print ",,,value1,value2,,"... (3 Replies)
Hi,
I have a variable which has a list of string separated by comma.
for ex ,
Variable=/usr/bin,/usr/smrshbin,/tmp
How can i get the values between the commas separately using shell scripts.Please help me.
Thanks,
Padmini. (6 Replies)
Hello all,
I am working on a script and have the first part solved of numerical input validation. Below the code validates that the input is a numerical value between 100 and 1000. If not, it errors out. Now I need to be able to read values separated by a comma. For example, instead of my... (5 Replies)
Hi
pls help me to get the code:
i have a file in which content is :
2.01304E+11 2.01304E+11 ori 2 01:00
2.01304E+11 2.01304E+11 ori 2 01:02
2.01304E+11 2.01304E+11 ori 3 01:02
2.01304E+11 2.01304E+11 ori 3 ... (7 Replies)
Hi,
I have a large number of files which are written as csv (comma-separated values).
Does anyone know of simple sed/awk command do achieve this?
Thanks!
---------- Post updated at 10:59 AM ---------- Previous update was at 10:54 AM ----------
Guess I asked this too soon. Found the... (0 Replies)
hello experts,
i am retrieving values in variables jobKey and jobName within my shell script. these values are returned to me within braces and i am using following command to remove those braces:
jobKeys=`echo $jobKeys | sed 's:^.\(.*\).$:\1:'`
jobNames=`echo $jobNames | sed... (1 Reply)
I have a file containing multiple values, some of them are pipe separated which are to be read as separate values and some of them are single value all are these need to store in variables.
I need to read this file which is an input to my script
Config.txt
file name, first path, second... (7 Replies)
My OS : RHEL 6.7
I have a text file with comma separated values like below
$ cat testString.txt
'JOHN' , 'KEITH' , 'NEWMAN' , 'URSULA' , 'ARIANNA' , 'CHENG', . . . .
I want these values to appear like below
'JOHN' ,
'KEITH' ,
'NEWMAN' ,
'URSULA' ,
'ARIANNA' ,
'CHENG',
.... (4 Replies)
Hi All,
I'm trying to pass the comma separated values (string) returned from Plsql Procedure to UNIX variable.
getting the below log message
cat: -: Bad file descriptor
awk: cmd. line:1: fatal: error reading input file `-': Bad file descriptor
The output coming from plsql procedure is... (3 Replies)
Hi All,
Hope you are doing Great!!!.
Today i have came up with a problem to say exactly it was for performance improvement.
I have written code in perl as a solution for this to cut in specific range, but it is taking time to run for files thousands of lines so i am expecting
a sed... (9 Replies)
Discussion started by: mad man
9 Replies
LEARN ABOUT SUNOS
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)