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Category:Educational materials[A case of non-Hodgkin's lymphoma with early clinical symptoms of panniculitis].
The panniculitis was the first clinical symptom of a B-cell non-Hodgkin's lymphoma in a 61-year-old female. The disease was initially misdiagnosed as psoriasis, and the correct diagnosis was reached during the operation. The lymphoma involved the inferior lobe of the right lung and the mediastinal and retroperitoneal lymph nodes. No other organ or system was involved. With regard to a B-cell non-Hodgkin's lymphoma, an early diagnostic examination should be considered and the operation performed in order to make an early diagnosis of lymphoma.Q:
Proper way to call a command with string and a variable
I am trying to use the bash command "strip -r" which takes a filename as input and then removes all character that are not letter.
I am using the command like this:
"${@:-sudo} strip -r $@"
which should call strip -r if @ is not set. If @ is set then it should call the command like this:
sudo strip -r /home/user/Desktop/test.png
But this gives me the error:
/home/user/Desktop/test.png: cannot open `/home/user/Desktop/test.png' (No such file or directory)
So I tried to do this:
"${@:-sudo} strip -r $1"
Which then gives me the error:
strip -r: invalid option -- r
What is the proper way to write that command?
A:
The $1, $2 etc., are variables in your shell/script. You do not need them in the command.
The ${@:-sudo} construct would be necessary, if you wanted to pass in an optional argument (such as sudo) which you might not have set.
# If @ is set, then $@ is empty, so strip -r is passed
# as "
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