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If I have a program that multiplies the user-supplied value with 10, how do I write another bash script that has arguments passed to it and takes these arguments and collects the output of the other program and organizes it into a table?
For example:
[user]$ table 1 5
#
#Value Result
1 10
5 50
[user]$
#!/bin/sh
tenTimes(){
expr "$1" \* 10
}
table(){
printf '%s\t%s\n' \#Value Result
for a; do
printf '%s\t%s\n' "$a" "$(tenTimes "$a")"
done
}
table 1 5
Output:
#Value Result
1 10
5 50
chmod +x), and it has to be either in your $PATH or you need to specify the full pathname to the script (e.g. /home/user/sim/tenTimes rather just tenTimes)
/home/user/sim/tenTimes or have /home/user/sim/ be a component of your PATH variable.
Oct 26, 2015 at 0:15
dirname "$0" (the path of your currently executing script) before you use them or graft them onto that path.
Oct 26, 2015 at 0:16
~/bin directory and add that to your PATH. Then mv or cp your scripts to ~/bin
You can it through a shell interpreter with an absolute or relative path;
/bin/sh /usr/local/bin/script
/usr/sbin/ksh ~/script
Maybe you want to use some functions much like an included library;
#!/bin/sh
func_a() { echo $(($1%42)); }
And in another file:
#!/bin/sh
. ~/path/to/func_a_file
func_a
Or maybe you want to call the script while assigning the results as a variable:
var1=$(~/path/to/script)
