How can I add string to the end of the file without line break?
for example if i’m using >> it will add to the end of the file with line break:
cat list.txt yourText1 root@host-37:/# echo yourText2 >> list.txt root@host-37:/# cat list.txt yourText1 yourText2
I would like to add yourText2 right after yourText1
root@host-37:/# cat list.txt yourText1yourText2
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Answer
sed '$s/$/yourText2/' list.txt > _list.txt_ && mv -- _list.txt_ list.txt
If your sed implementation supports the -i option, you could use:
sed -i.bck '$s/$/yourText2/' list.txt
With the second solution you’ll have a backup too (with first you’ll need to do it manually).
Alternatively:
ex -sc 's/$/yourText2/|w|q' list.txt
or
perl -i.bck -pe's/$/yourText2/ if eof' list.txt