linux shell(1) awk&cut
#!/bin/bash # Programe: # Write a shell, Take the first column from the file in the path of "/etc/passwd". In addition, # every column should be showned by a series of string,like [The 1 account is "root"]. The 1 represent the columns # History: # 2015/03/20 PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin export PATH #sudo awk -F ':' '{printf("The %2d acount is %s\n",NR,$1)}' /etc/passwd accounts=$(sudo cat /etc/passwd | cut -d':' -f 1) for account in $accounts do declare -i i=$i+1 echo "The $i account is \"$account\"" done