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Avoid calling identical commands multiple times

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Andrew Scheller 2018-01-22 02:33:33 +00:00
parent 49964b512c
commit 8784bda989
1 changed files with 6 additions and 4 deletions
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pishrink.sh
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@ -48,11 +48,13 @@ fi
#Gather info
beforesize=$(ls -lah "$img" | cut -d ' ' -f 5)
partnum=$(parted -ms "$img" unit B print | tail -n 1 | cut -d ':' -f 1)
partstart=$(parted -ms "$img" unit B print | tail -n 1 | cut -d ':' -f 2 | tr -d 'B')
parted_output=$(parted -ms "$img" unit B print | tail -n 1)
partnum=$(echo "$parted_output" | cut -d ':' -f 1)
partstart=$(echo "$parted_output" | cut -d ':' -f 2 | tr -d 'B')
loopback=$(losetup -f --show -o $partstart "$img")
currentsize=$(tune2fs -l $loopback | grep 'Block count' | tr -d ' ' | cut -d ':' -f 2)
blocksize=$(tune2fs -l $loopback | grep 'Block size' | tr -d ' ' | cut -d ':' -f 2)
tune2fs_output=$(tune2fs -l $loopback)
currentsize=$(echo "$tune2fs_output" | grep 'Block count' | tr -d ' ' | cut -d ':' -f 2)
blocksize=$(echo "$tune2fs_output" | grep 'Block size' | tr -d ' ' | cut -d ':' -f 2)
#Check if we should make pi expand rootfs on next boot
if [ "$should_skip_autoexpand" = false ]; then