当有无效行时,这很好(即执行条件块),但当每一行都有效时,脚本就会结束,而无需进一步处理。INVALID_HOSTS=$(egrep -v ${IP_REGEX} hosts) echo "Invalid hosts:" do echo ${entry} exit_with_err 浏览2提问于2019-09-07得票数 0 回答已采纳 1回答 从Bash中的变量中删除所有匹配"(True)“或"(False)...
出现 line 1: syntax error: unexpected "(" 的错误说明可执行脚本出现异常，具体错误在脚本的第一行，是语法错误，“(”不是预期的。题主需要检查脚本中的实际内容，根据具体内容去排除问题，脚本才能正确执行。
bash and Linux OS provides an error code on encountering failure or exist status code. As a numeric code is displayed it is for the user to understand and act on that error code. find the ready reference to the exit codes and error codes with their meaning to help debug the issues faste...
-m, --mode=MODE set file mode (as in chmod), not a=rwx - umask -p, --parents no error if existing, make parent directories as needed -v, --verbose print a message for each created directory -Z set SELinux security context of each created directory to the default type --context[...
# 在这里执行清理资源的操作 exit 1 } # 捕获 SIGINT 信号并执行 cleanup 函数 trap cleanup SIGINT # 设置脚本在遇到错误时立即退出 set -e # 执行一些操作 echo "Starting script..." # 模拟一个错误 false echo "This line will not be executed due to the previous error" # 清理资源 cleanup 在这个...
# exit when any command failsset-e# keep track of the last executed commandtrap'last_command=$current_command; current_command=$BASH_COMMAND'DEBUG# echo an error message before exitingtrap'echo "\"${last_command}\" command filed with exit code $?."'EXIT ...
exit I also tried withnsenter(same result asunshareas is shown above): the container is successfully created but once theeth1is down, we can still pull the image, not sure where all those traffics go through, the default eth0? ===In the first terminal=== sudo ip netns add stargz #...
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The -p option was introduced in Bash 5.1. Using an older Bash version will result in an “invalid option” error. Exploring the -f Option with bash wait Command The -f option instructs waiting to pause for each PID or jobspec to terminate before returning its exit code rather than return...
If the exit status is not equal to zero, the ‘else’ block is executed, which prints a message indicating that the command has failed. Here’s a simple example to illustrate how we can use an ‘if’ statement to check the exit status of a command: ...