Exiting from a loop with a break
In the previous section, we discussed about how continue
can be used to exit from the current iteration of a loop. The break
command is another way to introduce a new condition within a loop. Unlike continue
, however, it causes the loop to be terminated altogether if the condition is met.
In the for_12.sh
script, we check the directory's content. If the directory is found, then we are exiting the loop and displaying the message that the first directory is found:
#!/bin/bash rm -rf sample* echo > sample_1 echo > sample_2 mkdir sample_3 echo > sample_4 for file in sample* do if [ -d "$file" ]; then break; fi done echo The first directory is $file rm -rf sample* exit 0
Let's test the program:
$ chmod +x for_12.sh $ ./for_12.sh ...
Get Learning Linux Shell Scripting now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.