代码:
`cat <(fgrep -i -v "$DAEMON_TEST" <(sudo -u asm crontab -l)) <(echo "$CRON") | sudo -u asm crontab -`
错误:
command substitution: line 46: syntax error near unexpected token `('
/etc/init.d/asm: command substitution: line 46: `cat <(fgrep -i -v "$DAEMON_TEST" <(sudo -u asm crontab -l)) <(echo "$CRON") | sudo -u asm crontab -'
通过使用相关字符串替换变量
,直接运行到shell中时,该命令运行正常以下是变量:
DAEMON_TEST=asm_test.php
CRON="*/15 * * * * /opt/asm/daemons/test.php"
答案 0 :(得分:1)
这个问题最终完全不相关。
更改:
#/bin/sh
为:
#/bin/bash
我从未意识到会有不同
https://superuser.com/questions/125728/what-is-the-difference-between-bash-and-sh