shell for&whilt循环

root@Capsheaf_1:~ # cat test.sh
#!/bin/bash

for num in {1..10}
do
       echo $num
done

echo -e "\n"

for num in 1 2 3 4 5
do
       echo $num
done

echo -e "\n"

for shell_file_name in `ls /usr/local/bin/*.sh`
do
       name=`echo "$shell_file_name" | awk -F . '{print $1}'`
       name=${name##*/}
       echo $name
done


echo -e "\n"

for num in `seq 20`
do
       if ((num%5==0))
       then
               echo $num
       fi
done

echo -e "\n"

num=1
max=20
while [ $num -le $max ]
do
       if ((num%5==0))
       then
               echo $num
       fi
       num=$(($num+1))
done

root@Capsheaf_1:~ # ./test.sh  
1
2
3
4
5
6
7
8
9
10

1
2
3
4
5

auto-cryptsetup
auto_linkage
backup-compatibility
backup-create
backup-restore
check-kernel
chown
factory-default
get_ipv6_addr
getconns
getipaddress
gpgwrap
highperformance
ipscan
linkage_firewall
linkage_firewall_checkdaemon
logdiskmail
logrotate_rm
logtime_recover
mail_risk
network
openvpnuploadchachong
purge-spool
restartflowMonit
risk_tar
rpmlist
rrdfix
rules_apply
rules_resave
rules_update
sethomenet
shapingifb
syntoremote
usb_auto_install_utm

5
10
15
20

5
10
15
20
root@Capsheaf_1:~ #