shell script behavior is strange or I'm not understanding Post: 302470934

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Top Forums Shell Programming and Scripting shell script behavior is strange or I'm not understanding Post 302470934 by the.reverser on Thursday 11th of November 2010 12:02:25 PM

11-11-2010

Registered User

shell script behavior is strange or I'm not understanding

Hi
I have wrote the small script, where $SRC=$HOME
the input file is simple text file having directories in my $SRC on pre line

Code:

desktop
download
myfiles
games

Code:

#!/bin/bash
FILENAME=$1
ERROR_LOG="$SRC/err.$$.log"
while read line
do
   echo "########## strat Gmake $line #######" >$ERROR_LOG
   echo $line >>$ERROR_LOG
   cd $SRC
   cd  $line
   echo `pwd` >>$ERROR_LOG
   #gmake
   cd $SRC
   echo "############ End of Gmake $line #######">>err.$$.log
done < $FILENAME

I am expecting this to print [strat Gmake $line] .... [End of Gmake $line] section for every directory, available in the input file.

Kindly help to if my expectation is wrong from this code ... as I m not getting desired result. it is just printing the section [strat Gmake $line] .. [End of Gmake $line] for last directory in the input file.

Someone help me out to understand where is the catch

Last edited by vbe; 11-11-2010 at 01:11 PM.. Reason: script presentation...

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line

line(1)                                                            User Commands                                                           line(1)

NAME

       line - read one line

SYNOPSIS

       line

DESCRIPTION

       The  line utility copies one line (up to and including a new-line) from the standard input and writes it on the standard output. It returns
       an exit status of 1 on EOF and always prints at least a new-line. It is often used within shell files to read from the user's terminal.

EXIT STATUS

       Exit status is:

       0        Successful completion

       >0       End-of-file on input.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE         |      ATTRIBUTE VALUE        |
       +-----------------------------+-----------------------------+
       |Availability                 |SUNWcsu                      |
       +-----------------------------+-----------------------------+

SEE ALSO

       sh(1), read(2), attributes(5)

SunOS 5.10                                                          1 Feb 1995                                                             line(1)