shell script to run multiple commands one after another


See our simple script file below. Here are the commands: tar -zcf archive.tar.gz.tmp mydir mv archive.tar.gz.tmp archive.tar.gz I need the commands to run in the background, but obviously not both at the same time. Ask Question Asked 7 years, 9 months ago. Assume 3 groups of commands as in the code below. One requires a user to input a file. pwd ; whoami. Each shell script runs the PHP app in a loop, so it runs forever, sleeping after each run. How to Execute multiple command using nohup. In Linux/Unix each command stdout its output always in new line. This page show the easiest way to ssh and run multiple commands in using bash shell. Each shell script runs the PHP app in a loop, so it runs forever, sleeping after each run. In each group the three commands are started in the background with &. So, cat.sh, dog.sh, and foo.sh each run a PHP script.

... Wouldn't it be far simpler to create your list of commands in a separate shell file, e.g. myCommand1 ; myCommand2 But if I want to run multiple commands in background, I tried the following command format, but failed: myCommand1 & && myCommand2 & or I need to nohup two commands, one after another. Can some one suggest me a way where even after the exit the script execution resumes. You can run multiple commands as much as you wish, but with a limit. This is called a Bash script. The best method is to put all the wget commands in one script, and execute the script. I basically need to execute 3 wget commands and make them run in parallel. The second command has to be executed AFTER the first command. 9 Replies. Surprisingly, people usually tend to wait for each command to execute before running the next one. To run several commands all at once by putting an ampersand & at the end of the command line. Run command all at once. Here is another example to run a multiple commands on a remote system: ... How to ssh to multiple servers and run commands. Commands separated by a ; are executed sequentially; the shell waits for each command to terminate in turn. Shell Programming and Scripting. I have a few test scripts, each of which runs a test PHP app. SQLCMD was introduced in SQL Server 2005 and is the replacement for osql which Microsoft will be deprecating in a future release.

Running 3 shell script parallel in another shell script. This is a Bash script!! See the output of the PHP apps in the stdout/term window. This is hurdle in many situations where coder wants two outputs, two terms, two variables in single row for example csv format. The 3 commands will be started almost at the same time and run in parallel while the script waits for them to finish. Active 3 years, 9 months ago. Running Multiple Commands. getconf ARG_MAX.

Ask Question Asked 3 years, 9 months ago. I think that the shell that runs the commands above is itself not protected from SIGHUP.

The second command has to be executed AFTER the first command. For example start backup script: bash$ rm -fr ~/documents/ & shred -uz ~/importantfiles/ & rm -r /tmp/*.txt. The various dialects of shell scripts are considered to be scripting languages. I need to nohup two commands, one after another. Running Commands in Parallel using Bash Shell . Well, What about putting the commands into a file, and when we need to run these commands, we run that file only.

One can use simple bash for loop as follows. Once it is backgrounded and output redirected, the process won't see signals like SIGHUP when the parent shell executes. I'm trying to run three scripts one after the other. You can determine your max args using this command. It's easy to start one command in linux shell in background, just like this: myCommand & It's also easy to start multiple commands, just like this: myCommand1 && myCommand2 or. ... if one tells the command the limit is 5, it will start t scripts at once in paralell. Ask Question Asked 3 ... [username] allows you to run a command in the context of that user, from the current location. You can either join commands with ; or have them on separate lines: command1; command2 or .

In this example, run uptime command on three Linux server named box1, box2, and box3: for s in box1 box2 box3 do ssh vivek @ ${s} uptime done: Running local bash script on remote system. How to login as different user inside shell script and execute a set of commands?