10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi all,
I want to set 10 set of strings into a variable where:
removing all spaces within each string
change the delimiter from "|" to ","
Currently, I've the below script like this:Table=`ten character strings with spaces in-between and each string with delimiter "|" | tr -d ' ' |... (7 Replies)
Discussion started by: o1283c
7 Replies
2. Shell Programming and Scripting
Hi,
I'm using awk to print columns from a tab delimited text file:
awk '{print " "$2" "$3" $6"}' file
The problem I have is column 6 contains text with spaces etc which means awk only prints the first word.
How can I tell awk to print the whole column content as column 6?
Thanks, (10 Replies)
Discussion started by: keenboy100
10 Replies
3. Shell Programming and Scripting
Hey guys,
I'm new to shell scripting and I'm trying to write a script that takes user input and copies the specified columns from a data file to a new one. In order to account for the possibility of a variable number of columns to copy I wrote a loop that encodes the user's choices in an array... (16 Replies)
Discussion started by: shaner
16 Replies
4. UNIX for Dummies Questions & Answers
I have simple test.sh script, see below:
bill_code=`echo $record | awk -F"|" '{print $1}'`
Fullname=`echo $record | awk -F"|" '{print $3}'`
email=`echo $record | awk -F\ '{print $4}'`
The last field contains spaces: see csv below:
A0222|Y|DELACRUZ|-cc dell@yahoo.com-cc support@yahoo.com
... (9 Replies)
Discussion started by: quay
9 Replies
5. Shell Programming and Scripting
Hi All,
I want to pass few dynamic arguments to shell script. The number of arguments differ each time I call the script.
I want to print the arguments using the for loop as below. But not working out.
for (( i=1; i<=$#; i++ ))
do
echo $"($i)"
done
/bin/sh test.sh arg1 arg2 arg3
... (1 Reply)
Discussion started by: laalesh
1 Replies
6. UNIX for Dummies Questions & Answers
Hey all,
How do I make a script print its arguments in reverse order?
Thanks (5 Replies)
Discussion started by: unclepickle1
5 Replies
7. UNIX for Dummies Questions & Answers
When I use:
find . -ls | awk 'BEGIN { OFS = ";"} {print $1,$2,$11}'I get a nice result, yet the files with spaces in it show only the first word and all other characters after the blank space are not printed.
e.g. 'file with a blank space'
is printed
file
'file_with a blank space'
is... (7 Replies)
Discussion started by: dakke
7 Replies
8. Shell Programming and Scripting
Let's say I want to print the arguments $4 till $#, how can I do this?
$# contains the number of arguments
$@ contain all the arguments as string
What i need is something like
for i in $4_till_$#; do
#do something with $i
convert $i ~/$output
done
The first 3 arguments are used as options... (6 Replies)
Discussion started by: hakermania
6 Replies
9. Shell Programming and Scripting
Hello all,
I want to list the file contents of the directory and number them. I am using la and awk to do it now,
#ls |awk '{print NR "." $1}'
1. alpha
2. beta
3. gamma
The problem I have is that some files might also have some spaces in the filenames.
#ls
alpha beta gamma ... (7 Replies)
Discussion started by: grajp002
7 Replies
10. Shell Programming and Scripting
I want to be able to read in input which contain spaces and put that into an array. Each field should be delimeted by a space and should be a different array element. However I cant get it to work. any tips?
read input
//type field1 field2 field3
echo "$input"
array="$input"
Thanks in... (11 Replies)
Discussion started by: Calypso
11 Replies
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)