Hello. Sorry for the stupid question... Here is the problem. I'm trying to do a script that offers options for backup the root partition in unix sistems.
Here is the code part that i am talking of.
Code:
echo "tar can archive your file using gzip or Bzip2"
echo "gzip : relatively poor compresion ratio and high speed"
echo "Bzip2 : better compression ratio and slow speed"
echo "Choose now : gzip(z) or Bzip2(j)"
read archive_type
if archive_type=z; then
archive_type_0="gz"
fi
if archive_type=j; then
archive_type_0="bz2"
fi
echo "Type the path for backup image(don't type the final slash in the patch)"
echo "Oh, and be sure that your current user level have read/write acces on that path"
read path_save
echo "Enter the name of the backup file"
read name_save
echo "The file will be saved at "$path_save"/"$name_save".tar."$archive_type_0""
sleep 5
tar -cvp"$archive_type"f"$path_save"/"$name_save".tar."$archive_type_0" \
--exclude=$path_save/$name_save \
--exclude=/proc --exclude=/lost+found \
--exclude=/sys \
--exclude=/mnt \
--exclude=/media \
--exclude=/dev /
This is the code part that really bothers me. Leaving the variables without reference call ($) in if statement, seems to work. However, when adding "$"
Code:
if archive_type=z; then
$archive_type_0="gz"
fi
if archive_type=j
then
$archive_type_0="bz2"
fi
the terminal says "/home/editheraven/Desktop/rootsave: 57: j=z: not found" the same for "j" variable. Anyway, the code seems to work without reference call.
Another thing. How can i do a while loop like this
Code:
[pseudocode]
function select
{ read archive_type
if archive_type=j or archive_type=z
break
else call function select
I see that it's a little tricky to pass funtion return value, but i don't see any easy way to verify that the entered key is j or z and if not, to return at "read archive_type".
I know that it sounds a little silly, but it's kinda different from c code, where this can easely be done.
Last edited by vbe; 11-16-2011 at 10:33 AM..
Reason: formatting for ease of reading...
echo "tar can archive your file using gzip or Bzip2"
echo "gzip : relatively poor compresion ratio and high speed"
echo "tar can archive your file using gzip or Bzip2"
echo "gzip : relatively poor compresion ratio and high speed"
echo "Bzip2 : better compression ratio and slow speed"
echo "Choose now : gzip(z) or Bzip2(j)"
read archive_type
if [ "$archive_type" = "z" ]
then
archive_type_0="gz"
fi
if [ "$archive_type" = "j" ]
then
archive_type_0="bz2"
fi
echo "Type the path for backup image(don't type the final slash in the patch)"
echo "Oh, and be sure that your current user level have read/write acces on that path"
read path_save
echo "Enter the name of the backup file"
read name_save
echo "The file will be saved at "$path_save"/"$name_save".tar."$archive_type_0""
sleep 5
tar -cvp"$archive_type"f"$path_save"/"$name_save".tar."$archive_type_0" \
--exclude=$path_save/$name_save \
--exclude=/proc --exclude=/lost+found \
--exclude=/sys \
--exclude=/mnt \
--exclude=/media \
--exclude=/dev /
#!/usr/bin/bash
echo "Choose now : gzip(z) or Bzip2(j)"
read archive_type
if [ "$archive_type" = "z" ]
then
archive_type_0="gz"
fi
if [ "$archive_type" = "j" ]
then
archive_type_0="bz2"
fi
echo archive_type_0 " : " $archive_type_0
#
n12:/home/vbe $ ./004
Choose now : gzip(z) or Bzip2(j)
z
archive_type_0 : gz
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