Solved How to insert a startup script for Merlin custom scripts

[klcb2010]

I want to insert a startup script for Merlin custom scripts. Do I just need to add the script to the next line of "/jffs/scripts/init-start"? For example, /jffs/scripts/set_crontab.sh. Thank you everyone!

I'm attempting to execute a custom cron job path at startup, which will then trigger the execution of restart_wan.sh and /ss_rule_update.sh. I'll post the detailed code for several files for review. Thank you for your assistance.

1、init-start

#!/bin/sh
/jffs/scripts/set_crontab.sh

2、restart_wan.sh

#!/bin/bash
# /jffs/scripts/restart_wan.sh
 
# 设置日志文件路径（与脚本同目录）
LOG_FILE="/jffs/scripts/restart_wan.log"
 
# 获取当前日期的日部分
CURRENT_DAY=$(date +"%d")
 
# 检查当前日期是否为偶数（能被2整除）
if [ $((CURRENT_DAY % 2)) -eq 0 ]; then
    # 如果是偶数日期，则写入开始执行的日志
    echo "$(date) - Starting restart_wan.sh on even day" >> "$LOG_FILE"
 
    # 执行重启命令，并将输出也记录到日志中
    /sbin/service restart_wan >> "$LOG_FILE" 2>&1
 
    # 检查上一个命令的退出状态，并在日志中记录
    if [ $? -eq 0 ]; then
        echo "$(date) - Service restart_wan restarted successfully on even day" >> "$LOG_FILE"
    else
        echo "$(date) - Failed to restart service restart_wan on even day" >> "$LOG_FILE"
    fi
 
    # 写入执行结束的日志
    echo "$(date) - Finished restart_wan.sh on even day" >> "$LOG_FILE"
else
    # 如果不是偶数日期，则记录日志但不执行重启
    echo "$(date) - Skipping restart_wan.sh on odd day" >> "$LOG_FILE"
fi

3、set_crontab.sh

#!/bin/sh
 
# 设置要添加 cron 任务的用户名
USER="klcb2010"
 
# 定义日志文件路径和名称
LOG_FILE="/jffs/scripts/set_crontab.log"
 
# 记录启动日志
echo "$(date): set_crontab.sh 开始执行" >> "$LOG_FILE"
 
# 从自定义文件读取 cron 任务
CRON_FILE="/jffs/scripts/crontabs/klcb2010"
 
# 检查文件是否存在
if [ -f "$CRON_FILE" ]; then
    # 使用 crontab 命令设置用户的 crontab
    (crontab -l -u $USER; echo "$(cat $CRON_FILE)") | crontab -u $USER -
 
    # 记录成功更新 cron 任务的日志
    echo "$(date): Cron tasks for $USER have been updated from $CRON_FILE" >> "$LOG_FILE"
else
    # 记录文件不存在的错误日志
    echo "$(date): Cron tasks file $CRON_FILE does not exist!" >> "$LOG_FILE"
fi
 
# 记录结束日志
echo "$(date): set_crontab.sh 执行完成" >> "$LOG_FILE"

4、"/jffs/scripts/crontabs/klcb2010"，cron job not working

0 5 * * * /jffs/scripts/restart_wan.sh #wan_reboot#
0 4 * * * /bin/sh /koolshare/scripts/ss_rule_update.sh #update_ss #

 

[Mikii]

Is your script working if you execute it manually ? If so, you probably are running it too early. Try adding a 30 seconds delay on the first line of the script. Also, see the wiki: https://github.com/RMerl/asuswrt-merlin.ng/wiki/User-scripts

 

[klcb2010]

I want to insert a startup script for Merlin custom scripts. Do I just need to add the script to the next line of "/jffs/scripts/init-start"? For example, /jffs/scripts/set_crontab.sh. Thank you everyone!

I'm attempting to execute a custom cron job path at startup, which will then trigger the execution of restart_wan.sh and /ss_rule_update.sh. I'll post the detailed code for several files for review. Thank you for your assistance.

1、init-start

#!/bin/sh
/jffs/scripts/set_crontab.sh

Is your script working if you execute it manually ? If so, you probably are running it too early. Try adding a 30 seconds delay on the first line of the script. Also, see the wiki: https://github.com/RMerl/asuswrt-merlin.ng/wiki/User-scripts

like this ？

30 0 5 * * /jffs/scripts/restart_wan.sh #wan#
30 0 4 * * * /bin/sh /koolshare/scripts/ss_rule_update.sh #update#

 

[Grumpy_Geoff]

I think @Mikii is suggesting at the top of your "init-start" script you add a command -
sleep 30

But perhaps it's better to use a "services-start" script in place of the "init-wan" as that's executed as per RMerlin -

"Called after all other system services have been started at boot."

 

[klcb2010]

I think @Mikii is suggesting at the top of your "init-start" script you add a command -
sleep 30

But perhaps it's better to use a "services-start" script in place of the "init-wan" as that's executed as per RMerlin -

Like this?need reboot system ？

The content "services-start" is written as ：

#!/bin/sh
sleep 30
/jffs/scripts/set_crontab.sh


When I manually execute "set_crontab.sh", it works fine. However, it is strange that the scheduled task still does not run. The relevant code is as follows：

The content"set_crontab.sh"is written as ：

#!/bin/sh

# 设置要添加 cron 任务的用户名
USER="klcb2010"

# 定义日志文件路径和名称
LOG_FILE="/jffs/scripts/set_crontab.log"

# 记录启动日志
echo "$(date): set_crontab.sh 开始执行" >> "$LOG_FILE"

# 从自定义文件读取 cron 任务
CRON_FILE="/jffs/scripts/crontabs/klcb2010"

# 检查文件是否存在
if [ -f "$CRON_FILE" ]; then
# 使用 crontab 命令设置用户的 crontab
(crontab -l -u $USER; echo "$(cat $CRON_FILE)") | crontab -u $USER -

# 记录成功更新 cron 任务的日志
echo "$(date): Cron tasks for $USER have been updated from $CRON_FILE" >> "$LOG_FILE"
else
# 记录文件不存在的错误日志
echo "$(date): Cron tasks file $CRON_FILE does not exist!" >> "$LOG_FILE"
fi

# 记录结束日志
echo "$(date): set_crontab.sh 执行完成" >> "$LOG_FILE"

The content"/jffs/scripts/crontabs/klcb2010"is written as：

0 5 * * * /jffs/scripts/restart_wan.sh #wan_reboot#
0 4 * * * /bin/sh /koolshare/scripts/ss_rule_update.sh #update_ss #

 

[Grumpy_Geoff]

Like this?need reboot system ？

The content "services-start" is written as ：

#!/bin/sh
sleep 30
/jffs/scripts/set_crontab.sh

Yes. But as previously suggested, first test it to ensure it executes without error -

. /jffs/scripts/services-start

edit - I think I cocked up that invocation, it should be without the "." or as -

cd /jffs/scripts
./services-start

Then try it without the sleep command as it may not be needed at the time services-start is invoked.

 

[Grumpy_Geoff]

When I manually execute "set_crontab.sh", it works fine. However, it is strange that the scheduled task still does not run.

I know very very little about crontab, does the "command" require a shell invocation, as in -

0 5 * * * sh /jffs/scripts/restart_wan.sh #wan_reboot#

 

[ColinTaylor]

@klcb2010 This site does not provide support for your unofficial koolshare firmware. Ask the creators of your firmware for support.

 

[klcb2010]

@klcb2010 This site does not provide support for your unofficial koolshare firmware. Ask the creators of your firmware for support.

i install Asuswrt-Merlin 388.7 is the same case

 

[ColinTaylor]

i install Asuswrt-Merlin 388.7 is the same case

Your koolshare scripts will not work on official Merlin firmware.

 

[klcb2010]

Your koolshare scripts will not work on official Merlin firmware.

this scripts is MOD by myself

 

[ColinTaylor]

this scripts is MOD by myself

/koolshare/scripts/ss_rule_update.sh does not exist in Merlin's firmware.

 

[klcb2010]

/koolshare/scripts/ss_rule_update.sh does not exist in Merlin's firmware.

“/jffs/scripts/restart_wan.sh“” is my mod

 

[ColinTaylor]

I'm attempting to execute a custom cron job path at startup, which will then trigger the execution of restart_wan.sh and /ss_rule_update.sh.

The content"/jffs/scripts/crontabs/klcb2010"is written as：

0 5 * * * /jffs/scripts/restart_wan.sh #wan_reboot#
0 4 * * * /bin/sh /koolshare/scripts/ss_rule_update.sh #update_ss #

 

[klcb2010]

had changed，and it working now。
The current challenge is that the "/jffs/scripts/set_crontab.sh" script cannot be executed at bootup. I have already edited it into the "/jffs/scripts/init-start" script, which contains the following:

"#!/bin/sh
. /jffs/scripts/set_crontab.sh"

，manually executing "/jffs/scripts/set_crontab.sh" is not a problem

 

[RMerlin]

As indicated, this forum does not provide support for the Koolshare firmware. It is a fork with an unknown number of changes, and therefore you should reach out to the developers of that particular firmware for assistance.

 

[klcb2010]

As indicated, this forum does not provide support for the Koolshare firmware. It is a fork with an unknown number of changes, and therefore you should reach out to the developers of that particular firmware for assistance.

get it，the cron job is working now， thx ！