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Full Discussion: shell to match a pattern
Top Forums Shell Programming and Scripting shell to match a pattern Post 302284540 by cfajohnson on Thursday 5th of February 2009 08:10:39 PM
Old 02-05-2009
Quote:
Originally Posted by honglus
I want to return the word between ${} or after $, but I don't know the word name.

example of Perl result

Code:
 
$ echo '/data}/{bla/${INSTANCE}' | perl -ne '/\$\{?(\w+)\}?/;print $1'
INSTANCE
 
$ echo '/data}/{bla/$INSTANCE' | perl -ne '/\$\{?(\w+)\}?/;print $1'
INSTANCE


You haven't answered the question:
Where is the string you want to match?
Is it in a file?
Is it already in a variable?
Is it the output of a command?
Are you looking for it in a single line? Or in a file containing more than one line?
 

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MESSAGES(3)						  libbash messages Library Manual					       MESSAGES(3)

NAME
messages -- libbash library that implements a set of functions to print standard status messages SYNOPSIS
printOK [indent] printFAIL [indent] printNA [indent] printATTN [indent] printWAIT [indent] DESCRIPTION
General messages is a collection of functions to print standard status messages - those [ OK ] and [FAIL] messages you see during Linux boot process. The function list: printOK Prints a standard [ OK ] message (green) printFAIL Prints a standard [FAIL] message (red) printNA Prints a standard [ N/A] message (yellow) printATTN Prints a standard [ATTN] message (yellow) printWAIT Prints a standard [WAIT] message (yellow) Detailed interface description follows. indent Column to move to before printing. Default indent is calculated as TTY_WIDTH-10. If current tty width can not be determined (for example, in case of serial console), it defaults to 80, so default indent is 80-10=10 FUNCTIONS DESCRIPTIONS
printOK [indent] Prints a standard [ OK ] message (green) printFAIL [indent] Prints a standard [FAIL] message (red) printNA [indent] Prints a standard [ N/A] message (yellow) printATTN [indent] Prints a standard [ATTN] message (yellow) printWAIT [indent] Prints a standard [WAIT] message (yellow) EXAMPLES
Run a program named MyProg, and report it's success or failure: echo -n 'Running MyProg...' printWAIT if MyProg ; then printOK else printFAIL fi AUTHORS
Hai Zaar <haizaar@haizaar.com> Gil Ran <gil@ran4.net> SEE ALSO
ldbash(1), libbash(1) Linux Epoch Linux
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