CMD on LINUX

function p2v() { name=$1; plink2 --vcf $name --out ${name//.vcf.gz/} ${@:2};} # ${@:2:4}
alias prl="bash -c '(for i in {1..22};do eval echo \$@ ;done) |parallel  \"{}\" ' _"

Command line argument:

• $# Stores the number of command-line arguments that were passed to the shell program.
• $? Stores the exit value of the last command that was executed.
• $0 Stores the first word of the entered command (the name of the shell program).
• $* Stores all the arguments that were entered on the command line ($1 $2 ...).
• "$@" Stores all the arguments that were entered on the command line, individually quoted ("$1" "$2" ...).

./command -yes -no /home/username

• $# = 3
• $* = -yes -no /home/username
• $@ = array: {"-yes", "-no", "/home/username"}
• $0 = ./command, $1 = -yes etc.

 

$ for i in {11..14};do echo gen${i}/gen$(expr ${i} - 1).txt;done
gen11/gen10.txt
gen12/gen11.txt
gen13/gen12.txt
gen14/gen13.txt

 

 

 

 

 

Reference:

- https://superuser.com/questions/247127/what-is-and-in-linux/247131