I have this code:
#!/bin/bash
CMDA=$(curl -sI website.com/example.txt | grep Content-Length)
CMDB=$(curl -sI website.com/example.txt | grep Content-Length)
if [ "CMDA" == "CMDB" ];then
echo "equal";
else
echo "not equal";
fi
with this output
root@abcd:/var/www/html# bash ayy.sh
not equal
which should be "equal" instead of "not equal". What did I do wrong?
Thnaks
You forgot the $
for the variables CMDA
and CMDB
there. This is what you need:
if [ "$CMDA" = "$CMDB" ]; then
I also changed the ==
operator to =
, because man test
only mentions =
, and not ==
.
Also, you have some redundant semicolons. The whole thing a bit cleaner:
if [ "$CMDA" = "$CMDB" ]; then
echo "equal"
else
echo "not equal"
fi
您正在将字符串“ CMDA”与“ CMDB”进行比较,而应使用$来比较变量,例如$ {CMDA}
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