I'm learning about decision making structures and I came across these codes:if [ -f ./myfile ]then     cat ./myfileelse     cat /home/user/myfilefi[ -f ./myfile ] &&cat ./myfile ||cat /home/user/myfileBoth of them behave the same. Are there any advantages to using one way from the other?
Are if else statement equivalent to logical and && or || and where should I prefer one over the other?
shell script;control flow
No, constructions if A; then B; else C; fi and A && B || C are not equivalent.With if A; then B; else C; fi, command A is always evaluated and executed (at least an attempt to execute it is made) and then either command B or command C are evaluated and executed.With A && B || C, it's the same for commands A and B but different for C: command C is evaluated and executed if either A fails or B fails.In your example, suppose you chmod u-r ./myfile, then, despite [ -f ./myfile ] succeeds, you will cat /home/user/myfileMy advice: use A && B or A || B all you want, this remains easy to read and understand and there is no trap. But if you mean if...then...else... then use if A; then B; else C; fi.