Bash脚本从文件执行命令，但如果取消则跳到下一个

Question

Im tring to make a script to execute a set of commands from a file

the file for example has a set of 3 commands perl script-a, perl script-b, perl script-c, each command on a new line and i made this script

#!/bin/bash
for command in `cat file.txt`
do
   echo $command
   perl $command

done

The problem is that some scripts get stuck or takes too long to finish and i want to see their outputs. It is possible to make the bash script in case i send CTRL+C on the current command that is executed to jump to the next command in the txt file not to cancel the wole bash script.

Thank you

Answer 1

You can use trap 'continue' SIGINT to ignore Ctrl+c :

#!/bin/bash
# ignore & continue on Ctrl+c (SIGINT)
trap 'continue' SIGINT

while read command
do
   echo "$command"
   perl "$command"
done < file.txt

# Enable Ctrl+c
trap SIGINT

Also you don't need to call cat to read a file's contents.

Answer 2

#!/bin/bash
for scr in $(cat file.txt)
do
 echo $scr

 # Only if you have a few lines in your file.txt,
 # Then, execute the perl command in the background
 # Save the output.
 # From your question it seems each of these scripts are independent

 perl $scr &> $scr_perl_execution.out &

done

You can check each of the output to see if the command is doing as you expect. If not, you can use kill to terminate each of the command.