Why do I get 1 error in Bash?
The $x is 1 in the first iteration of the loop, but there is no such command, hence the errors (there would be one error for each iteration of the loop if you have no commands corresponding to the integers in the range 1 to 10; the output in the question is probably truncated). which would have an equivalent effect.
How to know if a command is not found in Bash?
If not, it will see if there’s an executable command /usr/bin/foo and if not there, it will look to see if /bin/foo exists, etc. until it gets to /Users/david/bin/foo. If it can’t find a command foo in any of those directories, it tell me command not found.
What should I do if my bash script is not running?
If there is, it will execute /usr/local/bin/foo. If not, it will see if there’s an executable command /usr/bin/foo and if not there, it will look to see if /bin/foo exists, etc. until it gets to /Users/david/bin/foo. If it can’t find a command foo in any of those directories, it tell me command not found.
How to redirect system errors in bash script?
Standard error redirection You can redirect all the system errors to a custom file using standard errors, which can be denoted by the number 2. Execute it in normal Bash commands, as demonstrated below: $ mkdir users 2> errors.txt $ cat errors.txt mkdir: cannot create directory ‘users’: File exists
What to do if there is no command in Bash?
This would be replace by the output of the command $x >> c.txt. The $x is 1 in the first iteration of the loop, but there is no such command, hence the errors (there would be one error for each iteration of the loop if you have no commands corresponding to the integers in the range 1 to 10; the output in the question is probably truncated).
How to get the output of a bash script?
One way is to place a set -x at the top of your script or run it with bash -x instead of just bash – this will output the lines before executing them and you usually just need to look at the command output immediately before the error to see what’s causing the problem
Why is my command not found on empty?
Your problem is probably a single line in the file referencing a program that’s either not on the path, not installed, misspelled, or something similar.