I need to call the function called foo() using echo command in the same statement. How do I all or invoke the function using the echo statement?
You can define a function using the following syntax:
foo(){ date }
Now you can call the function foo() using the echo statement as follows:
echo "Today is $(foo)"
Sample outputs:
Today is Sat Jan 22 00:27:26 IST 2011
A sample shell script to display system info:
#!/bin/bash findcpu(){ grep 'model name' /proc/cpuinfo | uniq | awk -F':' '{ print $2}' } findkernelversion(){ uname -mrs } totalmem(){ grep -i 'memtotal' /proc/meminfo | awk -F':' '{ print $2}' } echo "CPU Type : $(findcpu)" echo "Kernel version : $(findkernelversion)" echo "Total memory : $(totalmem)"
See also:
- Chapter 9: Functions from the Linux shell scripting wiki.
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🐧 4 comments so far... add one ↓
🐧 4 comments so far... add one ↓
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Cool, exactly what I was looking for.
Thanx!
Good one, Helpful Thanks!!
Wonderful, thanks!
cool.. short and good…thx