shell script

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Getting exit status of the command when using pipes

I came across a situation where i needed the exit code of last command but before passing it through the pipe. For example, running the following command would give the exit code 0, even if the first command failed : root@NTRTR:/tmp# wl -i eth0 assoclist | wc -l wl: wl

mysql

Shell Script to Create and Grant Privilege to a new user

!/bin/bash #Script to Create a user and assign privilege to a MySQL Database read -p "Please Enter Database Name:" dbname mysql -Bse "USE $dbname" 2> /dev/null if [ $? -eq 0 ]; then read -p "Please enter the username you wish to create : " username