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Full Discussion: How can I extract digits at the end of a string in UNIX shell scripting?
Top Forums Shell Programming and Scripting How can I extract digits at the end of a string in UNIX shell scripting? Post 303026211 by mingch on Wednesday 21st of November 2018 10:13:54 PM
Old 11-21-2018
Thanks for your reply

------ Post updated at 02:43 AM ------

And I want to increment a Variable but it doesnt work.
How can extract digits at the end of a string and increment variable value by 1 in Unix shell scripting or perl?
Thanks again.

e.g. a123_B234-012.txt
Code:
echo "a123_B234-012.txt\c" | sed "s/.txt$//" | sed "s/[0-9]\{1,10\}$//" && echo "`echo "a123_B234-012.txt" | sed 's/.*[^0-9]\([0-9][0-9]*\).txt$/\1/'`+1\c"  && echo ".txt"

I want the output:
Code:
a123_B234-013.txt

------ Post updated at 03:13 AM ------

e.g.
Code:
cat file.txt
abc_d123_4567.txt
A246_B789.txt
B123cc099.txt
a123_B234-012.txt
a13.txt


Output
Code:
abc_d123_4568.txt
A246_B790.txt
B123cc100.txt
a123_B234-013.txt
a14.txt

Last edited by mingch; 11-21-2018 at 11:12 PM.. Reason: Code tags
 

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LEARN ABOUT DEBIAN

grcompiler

grcompiler(1)															     grcompiler(1)

NAME

       grcompiler - Compile GDL into a TrueType Font

SYNOPSIS

       grcompiler [-d] [-D] [-g] [-n number] [-v number] [-w number] [-wall] [-q] gdl-file font-file [output-file] [output-fontname]

Description
       Grcompiler  compiles  a	Graphite Description Language description of the smarts for a font along with a TrueType Font to create a graphite
       font with graphite tables in it.

       -d     Generate XML debugger file.

       -D     Generate all debugger files.

       -g     Permit and ignore invalid glyph definitions.

       -nnumber
	      Set name table start location.

       -q     Quiet mode (no messages except on error).

       -vnumber
	      Set Silf table version number.

       -wnnnn Ignore warning with the given number. This option may be repeated.

       -wall  Display all warnings.

Environment
       grcompiler makes use of the following environment variables

       GDLPP  Specifies the command to execute to run the GDL preprocessor

Files
       gdlerr.txt
	      Warnings and errors are output to this file.

       dbg_classes.txt
	      Debug file that specifies the classes stored in the font in terms of their GDL source and containing glyph ids in hex.

       dbg_cmap.txt
	      Debug file giving Unicode to glyph mapping of all the glyphs in the font and vice versa.

       dbg_enginecode.txt
	      Debug file containing the action code and constraint code associated with each pass and rule in a pass.

       dbg_fsm.txt
	      Debug file that gives the finite state machines of each pass and the rules referenced. For each pass, a  mapping	is  given  between
	      glyph and column number.

       dbg_glyphattrs.txt
	      Debug file containing all the glyph attributes and their names, along with values specified for each glyph.

       dbg_parsetree.txt
	      Debug file giving the complete parse tree of the GDL source file.

       dbg_ruleprec.txt
	      Debug file that lists the rules in precedence order (order in which they will be tested) for each pass.

       $_temp.gdl
	      Debug file containing the output of gdlpp

Author
       Martin Hosken <mhosken@users.sourceforge.net>

							   $Date: 2012-05-29 11:36:50 $ 					     grcompiler(1)
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