重命名以数值结尾的文本文件

Question

I have fifteen files that are named ...cyclones_hrrr_( 1-16 ) and I need to rename them to cyclones_hrrr_( 0-15 ). I've written the following code using the mv command and it works but, I need something that's more efficient, perhaps a loop of some sort:

mv ${HOMEDIR}/hrrr/tmp/cyclones_hrrr_1 ${HOMEDIR}/hrrr/tmp/cyclones_hrrr_0
mv ${HOMEDIR}/hrrr/tmp/cyclones_hrrr_2 ${HOMEDIR}/hrrr/tmp/cyclones_hrrr_1
mv ${HOMEDIR}/hrrr/tmp/cyclones_hrrr_3 ${HOMEDIR}/hrrr/tmp/cyclones_hrrr_2
mv ${HOMEDIR}/hrrr/tmp/cyclones_hrrr_4 ${HOMEDIR}/hrrr/tmp/cyclones_hrrr_3
mv ${HOMEDIR}/hrrr/tmp/cyclones_hrrr_5 ${HOMEDIR}/hrrr/tmp/cyclones_hrrr_4
mv ${HOMEDIR}/hrrr/tmp/cyclones_hrrr_6 ${HOMEDIR}/hrrr/tmp/cyclones_hrrr_5
mv ${HOMEDIR}/hrrr/tmp/cyclones_hrrr_7 ${HOMEDIR}/hrrr/tmp/cyclones_hrrr_6
mv ${HOMEDIR}/hrrr/tmp/cyclones_hrrr_8 ${HOMEDIR}/hrrr/tmp/cyclones_hrrr_7
mv ${HOMEDIR}/hrrr/tmp/cyclones_hrrr_9 ${HOMEDIR}/hrrr/tmp/cyclones_hrrr_8
mv ${HOMEDIR}/hrrr/tmp/cyclones_hrrr_10 ${HOMEDIR}/hrrr/tmp/cyclones_hrrr_9
mv ${HOMEDIR}/hrrr/tmp/cyclones_hrrr_11 ${HOMEDIR}/hrrr/tmp/cyclones_hrrr_10
mv ${HOMEDIR}/hrrr/tmp/cyclones_hrrr_12 ${HOMEDIR}/hrrr/tmp/cyclones_hrrr_11
mv ${HOMEDIR}/hrrr/tmp/cyclones_hrrr_13 ${HOMEDIR}/hrrr/tmp/cyclones_hrrr_12
mv ${HOMEDIR}/hrrr/tmp/cyclones_hrrr_14 ${HOMEDIR}/hrrr/tmp/cyclones_hrrr_13
mv ${HOMEDIR}/hrrr/tmp/cyclones_hrrr_15 ${HOMEDIR}/hrrr/tmp/cyclones_hrrr_14
mv ${HOMEDIR}/hrrr/tmp/cyclones_hrrr_16 ${HOMEDIR}/hrrr/tmp/cyclones_hrrr_15

Answer 1

Try :

p="${HOMEDIR}/hrrr/tmp/cyclones_hrrr_"
for ((i=1; i<=16; i++)); do mv "$p$i" "$p$((i-1))" ; done

Answer 2

for i in {1..16}; do mv "cyclones_hrrr_$i" "cyclones_hrrr_$((i-1))" ; done

Explanation

• for i in {1..16}; do

  This starts a loop. The loop is run for every value of the variable i from 1 to 16.

• mv "cyclones_hrrr_$i" "cyclones_hrrr_$((i-1))"

  This moves the files. If the files are not in the current directory, add the path.

  The shell allows simple arithmetic. The expression $((i-1)) returns i-1 .

• done

  This signals the end of the loop.