from sh import ls ls = ls.bake("-la") print(ls) # "/usr/bin/ls -la" # resolves to "ls -la /" print(ls("/"))
The idea here is that now every call to
ls will have the “-la” arguments
already specified. Baking can become very useful when you combine it with
from sh import ssh # calling whoami on a server. this is a lot to type out, especially if # you wanted to call many commands (not just whoami) back to back on # the same server iam1 = ssh("myserver.com", "-p 1393", "whoami") # wouldn't it be nice to bake the common parameters into the ssh command? myserver = ssh.bake("myserver.com", p=1393) print(myserver) # "/usr/bin/ssh myserver.com -p 1393" # resolves to "/usr/bin/ssh myserver.com -p 1393 whoami" iam2 = myserver.whoami() assert(iam1 == iam2) # True!
Now that the “myserver” callable represents a baked ssh command, you can call anything on the server easily:
# executes "/usr/bin/ssh myserver.com -p 1393 tail /var/log/dumb_daemon.log -n 100" print(myserver.tail("/var/log/dumb_daemon.log", n=100))