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Full Discussion: Help requested for a script with sed
Top Forums Shell Programming and Scripting Help requested for a script with sed Post 302290265 by fatimap on Sunday 22nd of February 2009 09:29:11 PM
Old 02-22-2009
Help requested for a script with sed
Hello Folks,
I would very much appreciate if I could get help/suggestions on a particular sed usage. I have to write a script to take version info from a version file, compute the image name, print error if the image does not exist.
The version file looks like below:

"
Code:
#
# version.cfg
#
version =   4.2.1.1.10  # 
"

The script seems to get the image name right but does not expand correctly in "ifeq ($(wildcard $(IMAGE_FILE)), )"

This is what I get:
"
IMAGE_FILE = ./images/release-4.2.1.1.10.tar.gz 
Makefile:19: *** No image file "./images"/release-`grep version ./version.cfg | grep "=" | cut -d'=' -f2 | sed -e 's/#.*//' -e 's/[ ^   ]*//' -e 's/\ .*//'`.tar.gz.  Stop.
"

This is my script:
==================
"
.PHONY: chkImage
VERSION_FILE := ./version.cfg
ifeq ($(wildcard $(VERSION_FILE)),)
    $(error $(nl-ht)No Version File $(VERSION_FILE) Exists) 
endif
ImageRoot := "./images"
Version := `grep version $(VERSION_FILE) | grep "=" | cut -d'=' -f2 |   \
                    sed -e 's/\#.*//' -e 's/[ ^ ]*//' -e 's/\ .*//'`
Image := release-$(Version).tar.gz
IMAGE_FILE := $(ImageRoot)/$(Image)

all: chkImage

chkImage:
        @printf "IMAGE_FILE = $(IMAGE_FILE) \n"
ifeq ($(wildcard $(IMAGE_FILE)), )
    $(error $(nl-ht)No image file $(IMAGE_FILE))
endif
"

Your help in resolving this issue would be greatly appreciated.
Last edited by Neo; 02-23-2009 at 12:41 PM.. Reason: Added code tags - please use them!
 

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LEARN ABOUT LINUX

zegrep

ZGREP(1)                                                      General Commands Manual                                                     ZGREP(1)

NAME

       zgrep - search possibly compressed files for a regular expression

SYNOPSIS

       zgrep [ grep_options ] [ -e ] pattern filename...

DESCRIPTION

       Zgrep  invokes  grep  on  compressed  or  gzipped  files.   These  grep  options  will  cause  zgrep  to  terminate  with  an  error  code:
       (-[drRzZ]|--di*|--exc*|--inc*|--rec*|--nu*).  All other options specified are passed directly to grep.  If no file is specified,  then  the
       standard input is decompressed if necessary and fed to grep.  Otherwise the given files are uncompressed if necessary and fed to grep.

       If the GREP environment variable is set, zgrep uses it as the grep program to be invoked.

EXIT CODE

       2 - An option that is not supported was specified.

AUTHOR

       Charles Levert (charles@comm.polymtl.ca)

SEE ALSO

       grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1)

                                                                                                                                          ZGREP(1)
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