Return to append on previous line after a command in a bash script

Question

I'm using echo to output text and curl to get my ip from a website:

echo -n "IP: "; curl ifconfig.co/x-real-ip; echo -e "\b test"

what I noticed is that when the curl command is executed it automatically changes to a new line, and with the escape \b i thought maybe i could backspace to the previous line and output some more text there. Though that is not working apparently. Is there any way to do that?

this outputs everything in the " " as a string.. no command is executed among those. — quelotic
– quelotic, Commented Jul 4, 2015 at 22:34
impossible. back tick will be substituted inside of double quotes. what environment are you running bash in? — Jason Hu
– Jason Hu, Commented Jul 4, 2015 at 22:37
Replace ifconfig.co/x-real-ip by network-science.de/tools/myip. — Cyrus
– Cyrus, Commented Jul 4, 2015 at 22:44

Eugeniu Rosca · Accepted Answer · 2015-07-04 22:51:05Z

1

Once the line is incremented, echoing a backspace will not help. Try this:

printf "IP: $(curl -s ifconfig.co/x-real-ip) anything-else\n"

edited Jul 4, 2015 at 22:51

answered Jul 4, 2015 at 22:20

Eugeniu Rosca

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4 Comments

quelotic Over a year ago

xargs used on curl returns the whole process and info of obtaining the information through the internet, download/upload speed, total size, received! thanks though for the quick answer!

Eugeniu Rosca Over a year ago

@quelotic: second try please :)

quelotic Over a year ago

same thing happens, feels strange cause all the download info of the curl is showing right before the printf starts printing... the lines print correctly on my screen except that now I get all that useless information! Its progress whatsoever! :)

quelotic Over a year ago

all i needed after all was the silent mode on curl "curl -s" thanks a bunch :)

tvm · Accepted Answer · 2015-07-04 22:44:33Z

1

This should work:

ip=$( curl -s ifconfig.co/x-real-ip ); echo -n "IP: $ip "; echo "more stuff"

With ip stored in variable, it is possible to avoid printing newline using the -n parameter.

edited Jul 4, 2015 at 22:44

answered Jul 4, 2015 at 22:39

tvm

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1 Comment

quelotic Over a year ago

thanks for the answer! didn't try that one but looks like its working quite good! all i needed was the -s for silent mode!

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