I have created a shell script to execute 5 commands from a file called elist.txt
ps -ef | grep user | grep 'process -s 9000' | cut -c -15 | cut -c 10- ps -ef | grep user | grep 'process -s 9001' | cut -c -15 | cut -c 10- ps -ef | grep user | grep 'process -s 9002' | cut -c -15 | cut -c 10- ps -ef | grep user | grep 'process -s 9003' | cut -c -15 | cut -c 10-
The shell script is as follows
export PATH="/usr/local/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/home/user/.local/bin:/home/user/bin" input="/home/user/script/list.txt" while IFS= read -r line do echo $($line) done < "$input"
output:
error: garbage option Usage: ps [options] Try 'ps --help <simple|list|output|threads|misc|all>' or 'ps --help <s|l|o|t|m|a>' for additional help text. For more details see ps(1).
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Answer
You can do this too. People usually do not recommend to use eval at all.
export PATH="/usr/local/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/home/user/.local/bin:/home/user/bin" input="/home/user/script/list.txt" while IFS= read -r line do bash -c "$line" done < "$input"
Regards!