seq tip

seq – print sequences of numbers

Keepin’ it simple. seq is a great util for various iteration tasks.

for i in $(seq 0 10); do echo "hey $i"; done
# hey 0
# hey 1
# ...
# hey 10

Try the -w flag to equalize the width of each number:

seq -w 0 10
# 00
# 01
# ...
# 10

And change the “increment-by” value too:

# seq -w <first> <incr-by> <last>
seq -w 0 .01 .1
# 0.00
# 0.01
# ...
# 0.10