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Top Forums Shell Programming and Scripting How to Replace fix width string Post 302186721 by victorcheung on Friday 18th of April 2008 01:54:54 AM
Old 04-18-2008
How to Replace fix width string

Hi,

I have a string variable with the following format:

v_str="$The Order Number is 0123456789*****$"

and I want to write a script to replace the "0123456789" with another number, say, "6543", after replacement, the new string length have to be same as the old string length, i.e.

the new string should look like:

"$The Order Number is 6543***********$"

the new string have to be assigned to another shell variable v_new_str.

Can somebody help?


Thaks!
Victor Cheung
 

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basename(1)						      General Commands Manual						       basename(1)

NAME
basename, dirname - extract portions of path names SYNOPSIS
string [suffix] [string] DESCRIPTION
deletes any prefix ending in and the suffix (if present in string) from string, and prints the result on the standard output. If string consists entirely of slash characters, string is set to a single slash character. If there are any trailing slash characters in string, they are removed. If the suffix operand is present but not identical to the characters remaining in string, but it is identical to a suf- fix of the characters remaining in string, the suffix is removed from string. is normally used inside command substitution marks within shell procedures. delivers all but the last level of the path name in string. If string does not contain a directory component, returns indicating the cur- rent working directory. EXTERNAL INFLUENCES
Environment Variables determines the interpretation of string and, in the case of basename, suffix as single and/or multi-byte characters. If is not specified in the environment or is set to the empty string, the value of is used as a default for each unspecified or empty vari- able. If is not specified or is set to the empty string, a default of "C" (see lang(5)) is used instead of If any internationalization variable contains an invalid setting, and behave as if all internationalization variables are set to "C". See environ(5). International Code Set Support Single- and multi-byte character code sets are supported. EXAMPLES
The following shell script, invoked with the argument compiles the named file and moves the output to a file named in the current direc- tory: The following example sets the shell variable to RETURN VALUE
and return one of the following values: Successful completion. Incorrect number of command-line arguments. SEE ALSO
expr(1), sh(1). STANDARDS CONFORMANCE
basename(1)
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