This one also did not work like I wanted, it waits for the lxterminal process to finish, but that is not what I expect. Instead, I want my script to wait for lxterminal window to close, and continue with the loop. Is that possible? Any suggestions? linux bash raspberry-pi raspbian Sha...
If you have asked such question: does bash wait for a command to finish, you can find the answer here. In this article you will also find out how the WAIT command can help.
How to wait in a bash script for several subprocesses spawned from that script to finish, and then return exit code !=0 when any of the subprocesses ends with code !=0? Simple script: #!/bin/bash for i in `seq 0 9`; do calculations $i & done wait The ...
根据wait手册页,wait with multiple pid's只返回等待的最后一个进程的返回值。因此,您需要一个额外的循环,并按照答案中的建议分别等待每个PID。 @尼尔斯:你说得对,对不起。所以应该是:for i in $n_procs; do ./procs[${i}] & ; pids[${i}]=$!; done; for pid in ${pids[*]}; do wait $pid...
If a command is terminated by the control operator &, the shell executes the command in the background in a sub shell. The shell does not wait for the command to finish, and the return status is 0. Commands separated by a ; are executed sequentially; the shell waits for each ...
A bash script can always be terminated by clickingCTRL + Cwithout waiting for it to finish its operation. 4. Wait Command waitis a built-inLinux commandthat waits for completion of running process. The wait command is used with a particular process id or job id. ...
j<$progress+1; j++ )); do echo -ne "#" done echo -ne "\033[0m" # clear color for (( j=$progress; j<50; j++ )); do echo -ne " " done local percent=$(( (total_time - i) * 100 / total_time )) printf " %3d %%]" $percent sleep 1 done echo -e "\n Finish!"...
Bash Testing: 如何测试你写的 bash script; Bash by example@ IBM developerWorks; Advanced Bash-Scripting Guide; Bash Guide for Beginners; Linux/BSD command line wizardry:Learn to think in sed, awk, and grep. Grep finds strings; Sed replaces strings; Awk finds columns. ...
一、wget http://download.redis.io/releases/redis-4.0.2.tar.gz二、tar xzf redis-4.0.2.tar.gz cd redis-4.0.2 make make install三、在Redis源代码目录的utils文件夹中有一个名为redis_init_script的初始化脚本文件。需要配置Redis的运行方式和持久化文件、日志文件的 centos redis命令行启动 数据库 开发...
这样导致这样的疑问: 为什么bash不能使用C风格的for循环呢? for (X=1,X<10; X++) 这也跟bash自身的特性有关,之所以不允许这种for循环是由于:bash是一种解释性语言,因此其运行效率比较低。也正是由于这个原因,高负荷迭代是不允许的。 命令替换 Bash shell有个非常好用的特性叫做命令替换。允许我们将一个命令...