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03-14-2006
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how to find Script file location inside script
I have to find out the file system location of the script file inside script. for example a script "abc.sh" placed anywhere in the file system when executed shold tell by itself the location of it.
example #pwd / #./abc this is / #cd /root #./abc this is /root #cd / #/root/abc this is /root Last edited by asami; 03-14-2006 at 03:01 AM. 
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03-14-2006
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This should work.
Code:
[/tmp]$ cat pwd.ksh
#! /bin/ksh
self="${0#./}"
base="${self%/*}"
current=$(pwd)
if [ "$base" = "$self" ] ; then
echo "$current"
else
echo "$current/$base"
fi ;
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03-14-2006
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Quote:
Care to explain/show what is the output that you are getting ? self="${0#./}" The 0 you see is the digit 0 instead of the alphabet O
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03-14-2006
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I see what you mean.
What you actually need is the contents of /proc/pid/exe. But in your case since you need the actual path of script that is run, /proc/pid/exe it wouldnt help because, the shell i.e. /bin/sh or /bin/ksh or /bin/bash et al., picks up your script and runs it. So a /proc/pid/exe inside a script would give you /bin/sh or /bin/ksh likewise. What you can do is analyze $0 and see if it is a path starting from / and gets its basename. Else use it along with pwd of the current directory.
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03-14-2006
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Code:
[/tmp]$ cat pwd.ksh
#! /bin/ksh
self="${0#./}"
base="${self%/*}"
current=$(pwd)
if [ "$base" = "$self" ] ; then
{ cd "$current" ; echo $(pwd) ;}
else
{cd $current/$base ; echo $(pwd) ; }
fi ;
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