I would like to format string using linux bash:
"<username>{0}</username><password>{1}</password>".format("user", "pass")
Output:
<username>user</username><password>pass</password>
What is the correct command to do this? I can use any other wildcard instead {0} and {1}
From printf --help:
-v var assign the output to shell variable VAR rather than display it on the standard output
So, what you need to do is just:
FMT='<username>%s</username><password>%s</password>'
printf -v VAR "$FMT" user pass
printf "$FMT" $(whoami) 'passphrase'Try this sort of parameter expansion:
TMPL="<username>\$U</username><password>\$P</password>"
REALNAME="Bobby"
REALPASS="Lamepass"
TMPL=${TMPL/\$U/${REALNAME}}
TMPL=${TMPL/\$P/${REALPASS}}
echo $TMPL
The syntax you are using seems to be python. Security aspects aside, you could directly call python:
var='"<username>{0}</username><password>{1}</password>".format("user", "pass")'
python3 -c "print($var)"
prints
<username>user</username><password>pass</password>
