running several comands in a bash script

Question

I have some commands I would like to run in the following order:

HEADAS=/home/warano/HEASoft/heasoft-6.24/x86_64-pc-linux-gnu-libc2.27
export HEADAS 
alias heainit=". $HEADAS/headas-init.sh" 
heainit
CALDB=/home/warano/NUSTAR/caldb
export CALDB 
source $CALDB/software/tools/caldbinit.sh

I put all of these in a script called run-nu_tools.sh, but it does not work so I got this output:

./run-nu_tools.sh: line 6: heainit: command not found

However heainit works if one runs everything in the terminal(step by step) so I want to run all at once, do you have any tips?

Why do you say it does not help? Why do you not want to use a function? Why do you want to use an alias? What happens if you use a function anyway? — tripleee, Nov 12 '18 at 11:08

score 2 · Answer 1 · edited Jun 20 '20 at 09:12

2

The problem is that aliases are not expanded if the shell is not interactive:

ALIASES: Aliases are not expanded when the shell is not interactive unless the expand_aliases shell option is set using shopt.

_{source: man bash}

Add the following to your script:

shopt -s expand_aliases

edited Jun 20 '20 at 09:12

Community

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answered Nov 12 '18 at 10:46

kvantour

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It does not work. – Wara Nov 12 '18 at 10:57
If it doesn't work for you, some part of the prerequisites is wrong. Are you not using Bash after all, perhaps? See also https://stackoverflow.com/questions/5725296/difference-between-sh-and-bash – tripleee Nov 12 '18 at 11:13

running several comands in a bash script

1 Answers1