無聊統計了下公司經常使用的linux 命令

#!/bin/bash

#remove the output files
rm -f /tmp/{comm_list.txt,comm_final.txt,pop_result.txt}

#list all users
USERS=$(ls /home/ | egrep -v "xx|yy|zz")

#output the command history to a text file
for i in $(echo $USERS)
do
        cat /home/$i/.bash_history >> /tmp/comm_list.txt
done
cat /root/.bash_history >> /tmp/comm_list.txt

#remove the timestamp comment
grep -v "#" /tmp/comm_list.txt > /tmp/comm_final.txt

#get the top 10 popular commands
cat /tmp/comm_final.txt | cut -d ' ' -f1 | sort | uniq -c | sort -n -r | head -n 20  | cat -n > /tmp/pop_result.txt

輸出結果

1    18478 vi
     2    17220 cd
     3     9586 grep
     4     8428 ls
     5     6994 p4
     6     3752 ll
     7     3432 make
     8     3320 fg
     9     1577 rm
    10     1390 pwd
    11     1211 vim
    12      732 ssh
    13      715 cat
    14      711 python
    15      702 find
    16      629 exit
    17      620 ps
    18      598 tail
    19      579 cp
    20      566 g++