RETVAL - 腾讯云开发者社区

echo [ $RETVAL -eq 0 ] && touch /var/lock/subsys/$prog return $RETVAL } stop() {...echo -n $"Stop $desc: " killproc $prog RETVAL=$?...echo [ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/$prog $PIDFILE return $RETVAL } restart...;; status) status $prog RETVAL=$?...$RETVAL

1.2K3 0

case语法案例

-f $pid ];then $path/nginx RETVAL=$?...if [ $RETVAL -eq 0 ];then action "nginx is started" /bin/true return $RETVAL...if [ $RETVAL -eq 0 ];then action "nginx is stopped" /bin/true return $RETVAL...start RETVAL=$?...;; stop) stop RETVAL=$?

1681 0

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鸿蒙之获取温湿度

\n", retval); return retval; } return HI_ERR_SUCCESS; } I2C写程序 static uint32_t AHT20...if (retval !...AHT20_STATUS_CALI(buffer[0])) { retval = AHT20_ResetCommand(); if (retval !...，开始测量 if (retval !...if (retval !

6242 0

安装nginx

echo return $RETVAL } stop() { echo -n $"Stopping $prog: " killproc -p $NGINX_PID $...NGINX_SBIN -TERM rm -rf /dev/shm/nginx_temp RETVAL=$?...echo return $RETVAL } reload(){ echo -n $"Reloading $prog: " killproc -p $NGINX_PID...$NGINX_SBIN -HUP RETVAL=$?...=1 esac exit $RETVAL # chmod 755 /etc/init.d/nginx # chkconfig --add nginx # service nginx start ?

8746 0

安装编译nginx

echo [ $RETVAL = 0 ] && touch ${lockfile} return $RETVAL } stop() { echo -n $"Stopping $...prog: " killproc -p ${pidfile} ${prog} RETVAL=$?...echo [ $RETVAL = 0 ] && rm -f ${lockfile} ${pidfile} } reload() { echo -n $"Reloading $prog:..." killproc -p ${pidfile} ${prog} -HUP RETVAL=$?...return $RETVAL } rh_status() { status -p ${pidfile} ${nginx} } # See how we were called. case "

6002 0

linux开机自启动脚本

/sbin/nginx nginx_config=/usr/local/nginx/conf/nginx.conf nginx_pid=/usr/local/nginx/logs/nginx.pid RETVAL...exit 1 fi echo -n $"Starting $prog: " daemon $nginxd -c ${nginx_config} RETVAL=$?...echo [ $RETVAL = 0 ] && touch /var/lock/subsys/nginx return $RETVAL } # Stop nginx daemons functions.... stop() { echo -n $"Stopping $prog: " killproc $nginxd RETVAL=$?...echo [ $RETVAL = 0 ] && rm -f /var/lock/subsys/nginx /usr/local/nginx/logs/nginx.pid } # reload

4.4K3 0

Redis安装配置以及开机启动

echo [ $RETVAL -eq 0 ] && touch /var/lock/subsys/$prog return $RETVAL } stop() { echo -n $"Stop...$desc: " killproc $prog RETVAL=$?...echo [ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/$prog $PIDFILE return $RETVAL } restart() { stop...;; status) status $prog RETVAL=$?...;; *) echo $"Usage: $0 {start|stop|restart|condrestart|status}" RETVAL=1 esac exit $RETVAL #####

5965 0

用HtmlTextBlock实现消息对话框的内容高亮和跳转

private Inline UpdateElement(HtmlTag aTag) { Inline retVal = null; switch (aTag.Name) { case..."text" : retVal = new Run(aTag["value"]); if (currentState.Bold) retVal = new Bold(retVal...); if (currentState.Italic) retVal = new Italic(retVal); if (currentState.Underline) retVal...= new Underline(retVal); break; case "br" : retVal = new LineBreak(); break;...); retVal = link; } return retVal; } 然而，只有 Hyperlink的直接或间接父级为导航宿主时，Hyperlink才能导航到NavigateUri

1491 0

Java-String的常用方法总结

; retVal=Str1.equals(Str2); System.out.println("返回值="+retVal); retVal=Str1.equals(Str3); System.out.println...("返回值="+retVal); } } 以上程序执行结果为：返回值=true 返回值=true 3、public boolean endsWith(String suffix...; retVal=Str.endsWith("run"); System.out.println("返回值="+retVal); retVal=Str.endsWith("ooo"); ...; retVal=Str1.equals(Str2); System.out.println("返回值="+retVal); retVal=Str3.equals(Str4); System.out.println...("返回值="+retVal); retVal=Str1.equalsIgnoreCase(Str4); System.out.println("返回值="+retVal); } }

2783 0

Linux上的程序是怎样运行的

= PTR_ERR(bprm); goto out_ret; } retval = count(argv, MAX_ARG_STRINGS); bprm->argc = retval;...retval = count(envp, MAX_ARG_STRINGS); bprm->envc = retval; retval = bprm_stack_limits(bprm);...retval = copy_string_kernel(bprm->filename, bprm); bprm->exec = bprm->p; retval = copy_strings(bprm...->envc, envp, bprm); retval = copy_strings(bprm->argc, argv, bprm); retval = bprm_execve(bprm,...(retval < 0) goto out; retval = copy_strings(bprm->envc, envp, bprm); if (retval < 0) goto

3.4K3 0

Linux进程启动过程分析do_execve(可执行程序的加载和运行)---Linux进程的管理与调度（十一）

调用unshare_files()为进程复制一份文件表； retval = unshare_files(&displaced); if (retval) goto...bprm) goto out_files; retval = prepare_bprm_creds(bprm); if (retval)...； retval = copy_strings(bprm->argc, argv, bprm); if (retval < 0) goto out; /*...= security_bprm_check(bprm); if (retval) return retval; retval = -ENOENT; retry: read_lock...; } if (retval !

4.1K3 1

【DB笔试面试495】Oracle中哪个包可以获取环境变量的值？

----- /oracle/app/oracle/product/11.2.0/db SYS@LHRDB1> SET SERVEROUTPUT ON SYS@LHRDB1> DECLARE 2 RETVAL...VARCHAR2(4000); 3 BEGIN 4 SYS.DBMS_SYSTEM.GET_ENV('ORACLE_SID', RETVAL); 5 DBMS_OUTPUT.PUT_LINE...(RETVAL); 6 END; 7 / LHRDB1 PL/SQL procedure successfully completed....SYS@LHRDB1> DECLARE 2 RETVAL VARCHAR2(100); 3 BEGIN 4 SYS.DBMS_SYSTEM.GET_ENV('ORACLE_HOME',...RETVAL); 5 DBMS_OUTPUT.PUT_LINE(RETVAL); 6 END; 7 / /oracle/app/oracle/product/11.2.0/db PL

9442 0

AS5600 数据手册——12位可编程非接触式电位计

int _raw_ang_lo = 0x0d; int _ams5600_Address = 0x36; 高低位和数据的地址 int readOneByte(int in_adr) { int retVal..., int in_adr_lo) { word retVal = -1; /* 先读取低位 */ Wire.beginTransmission(_ams5600_Address);...= high | low; //高位数据左移动8位之后，和低位数据或 //或计算就是尽量等于1，任何一边有1就是1 return retVal; } 读取两个数值组合后就是一个磁编码器数据...); } int readOneByte(int in_adr) { int retVal = -1; Wire.beginTransmission(_ams5600_Address);...= Wire.read(); return retVal; } word readTwoBytes(int in_adr_hi, int in_adr_lo) { word retVal

6.3K1 0

Redis 在Centos Linux 上的启动脚本

="/var/run/redis.pid" ### Read configuration [ -r "$SYSCONFIG" ] && source "$SYSCONFIG" RETVAL...echo [ $RETVAL -eq 0 ] && touch /var/lock/subsys/$prog return $RETVAL }...echo [ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/$prog $PIDFILE return $RETVAL...;; status) status $prog RETVAL=$? ...;; *) echo $"Usage: $0 {start|stop|restart|condrestart|status}" RETVAL

1.3K8 0

CentOS下部署JDK+Tomcat8

JAVA_HOME=/usr/jdk1.8.0_201 CATALINA_HOME=/usr/tomcat TOMCAT_USER=tomcat LOCKFILE=/var/lock/subsys/tomcat RETVAL...start(){ echo "Starting Tomcat: " su - $TOMCAT_USER -c "$CATALINA_HOME/bin/startup.sh" RETVAL...=$ echo [ $RETVAL -eq 0 ] && touch $LOCKFILE return $RETVAL } stop(){ echo "Shutting down...Tomcat: " $CATALINA_HOME/bin/shutdown.sh RETVAL=$ echo [ $RETVAL -eq 0 ] && rm -f $LOCKFILE...return $RETVAL } case "$1" in start) start ;; stop) stop

7402 0

Linux下的mongodb服务脚本，以备不时之需

-QUIT RETVAL=$? ...echo [ $RETVAL -eq 0 ] && rm -f $lockfile } restart () { stop start } ulimit -n 12000...RETVAL=0 case "$1" in start) start ;; stop) stop ;; restart|reload|force-reload...;; *) echo "Usage: $0 {start|stop|status|restart|reload|force-reload|condrestart}" RETVAL=1...esac exit $RETVAL 将代码保存到 /etc/init.d/mongodb，然后使用 chmod +x /etc/init.d/mongodb 添加执行权限。

71410 0

安卓Frida Hook之Frida-Native-Hook

){ //retval返回值 console.log(retval); console.log("retval",retval.toInt32...){ //retval返回值 var returnedJString = Java.cast(retval, Java.use('java.lang.String...){ //retval返回值 retval.replace(20000); //返回值修改 console.log("...){ //retval返回值 var returnedJString = Java.cast(retval, Java.use('java.lang.String...){ //retval返回值 console.log(retval); // console.log("retval",

1790 0

Linux设备驱动模型-Uevent

retval = add_uevent_var(env, "DEVPATH=%s", devpath); if (retval) goto exit; retval = add_uevent_var...== -ENOBUFS || retval == -ESRCH) retval = 0; } else retval = -ENOMEM; } #endif mutex_unlock..."); if (retval) goto exit; retval = add_uevent_var(env, "PATH=/sbin:/bin:/usr/sbin:/usr/bin..."); if (retval) goto exit; retval = init_uevent_argv(env, subsystem); if (retval) goto exit...(); return retval; } 那什么时候会唤醒等待？

4.1K4 1

PathFileExists用法－－使用#include

int retval = PathFileExists(lpStr1); if(retval == 1) { cout << "Search for the file path of : " <<...requested /"" << lpStr1 << "/" is a valid file" << endl; cout retval...requested " << lpStr1 << " is not a valid file" << endl; cout retval...retval = PathFileExists(lpStr2); if(retval == 1) { cout << "/nThe file requested " << lpStr2 << "...cout << "Search for the file path of: " << lpStr2 << endl; cout retval

7942 0

dbms_lock.relase 无法释放自定义的锁?

:= SYS.DBMS_LOCK.RELEASE ( LOCKHANDLE ); 9 10 DBMS_OUTPUT.Put_Line('RetVal = ' || TO_CHAR(RetVal...)); 11 12 DBMS_OUTPUT.Put_Line(''); 13 14 COMMIT; 15 END; 16 / RetVal = 4 -...VARCHAR2(32767); 4 5 BEGIN 6 LOCKHANDLE := '10737420671073742067151'; 7 8 RetVal...:= SYS.DBMS_LOCK.RELEASE ( LOCKHANDLE ); 9 10 DBMS_OUTPUT.Put_Line('RetVal = ' || TO_CHAR(RetVal...OUT INTEGER); -- release an existing lock PROCEDURE release_lock (p_retval OUT INTEGER);

1.1K2 0

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Redis自动启动脚本

case语法案例

鸿蒙之获取温湿度

安装nginx

安装编译nginx

linux开机自启动脚本

Redis安装配置以及开机启动

用HtmlTextBlock实现消息对话框的内容高亮和跳转

Java-String的常用方法总结

Linux上的程序是怎样运行的

Linux进程启动过程分析do_execve(可执行程序的加载和运行)---Linux进程的管理与调度（十一）

【DB笔试面试495】Oracle中哪个包可以获取环境变量的值？

AS5600 数据手册——12位可编程非接触式电位计

Redis 在Centos Linux 上的启动脚本

CentOS下部署JDK+Tomcat8

Linux下的mongodb服务脚本，以备不时之需

安卓Frida Hook之Frida-Native-Hook

Linux设备驱动模型-Uevent

PathFileExists用法－－使用#include

dbms_lock.relase 无法释放自定义的锁?

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