Ken Heard grabbed a keyboard and wrote: > My amateur's attempt at scripting has come to grief. The script in > question reads as follows: > > #!/bin/sh > # Shell script to create a tgz file for the contents of the > # /usr/local/bin directory. > # Start by creating a variable with the current directory. > CURPWD=$PWD > # Change directory to /. > cd / > # Create a variable for the name of the tgz file. > ULB="$HOSTNAME"usrlocalbin.tgz > # Create the tgz file in the specified directory. > tar -czf /media/zd/$ULB usr/local/bin > # Return to the original directory. > #cd $CURPWD > > In both Lenny and Squeeze the $HOSTNAME value is BDS; the script > consequently created in Lenny the tarball BDSusrlocalbin.tgz located > in a Zip750 disk mounted at /media/zd. (Yes, the disk was properly > mounted.) In Squeeze however the tarball is created but without the > $HOSTNAME added at the beginning of the file name. > > What I find strange is that in Squeeze each command line in the script > run independently in succession achieves the desired result. After > doing so running "echo $ULB" returns the assigned value. Eliminating > the creation of $ULB and entering "$HOSTNAME"uslocalbin.tgz directly > into the tar command in the script also does not produce the desired > result. > > So something must be happening to prevent the tar command from using > the $ULB variable. Is there for example something different in > Squeeze which does not permit scripts written for Lenny to work in > Squeeze? Comment, suggestions, anyone?
The problem is that as of Squeeze, /bin/sh is no longer a link to bash,
it's a link to dash. Change the first line to !#/bin/bash - that should
fix your problem. (dash doesn't expand those variables)
--Dave
smime.p7s
Description: S/MIME Cryptographic Signature
