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Full Discussion: Following Symlinks to Actual Script
Top Forums Shell Programming and Scripting Following Symlinks to Actual Script Post 302351458 by jeffclough on Tuesday 8th of September 2009 03:08:50 PM
Old 09-08-2009
Following Symlinks to Actual Script
I need to have my script know what directory it's in, even if it's run from a symlink located elsewhere. Here's what I've come up with, for the benefit of anyone with a similar need, but I'm also interested to know if there's a more elegant solution. I'd rather not get into awk-land, but I couldn't get the quoting and escaping right with sed.

Code:
#!/bin/ksh
prog="$0"
echo "prog='$prog'"
while [ -L "$prog" ]; do
  prog=$(stat --format %N "$prog" | awk '{s=gensub("^.*-> ","","g");print substr(s,2,length(s)-2);}')
  echo "prog='$prog'"
done
dir=`dirname "$prog"`
echo "dir='$dir'"

 

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LEARN ABOUT SUSE

fixcrio

fixcrio(1)                                                    General Commands Manual                                                   fixcrio(1)

NAME

       fixcrio - inserts missing CRs at the ends of lines.

SYNOPSIS

       fixcrio prog

DESCRIPTION

       fixcrio runs prog.  It inserts CR at the end of each line of input or output to prog that does not have a CR.

       fixcrio runs as a child process of prog.  It exits when it sees the end of prog's output.

SEE ALSO

       tcpserver(1),  tcprules(1),  tcprulescheck(1),  argv0(1),  recordio(1), rblsmtpd(1), tcpclient(1), who@(1), date@(1), finger@(1), http@(1),
       tcpcat(1), mconnect(1), tcp-environ(5)

       http://cr.yp.to/ucspi-tcp.html

                                                                                                                                        fixcrio(1)
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