電子發燒友App
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一、根據PID過濾進程所有信息
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#!?/bin/bash #?Function:?根據用戶輸入的PID，過濾出該PID所有的信息 read?-p?"請輸入要查詢的PID:?"?P n=`ps?-aux|?awk?'$2~/^'$P'$/{print?$11}'|wc?-l` if?[?$n?-eq?0?];then ?echo?"該PID不存在！！" ?exit fi echo?"--------------------------------" echo?"進程PID:?$P" echo?"進程命令：`ps -aux| awk '$2~/^'$P'$/{print?$11}'`" echo?"進程所屬用戶:?`ps?-aux|?awk?'$2~/^'$P'$/{print?$1}'`" echo?"CPU占用率：`ps -aux| awk '$2~/^'$P'$/{print?$3}'`%" echo?"內存占用率：`ps -aux| awk '$2~/^'$P'$/{print?$4}'`%" echo?"進程開始運行的時刻：`ps -aux| awk '$2~/^'$P'$/{print?$9}'`" echo?"進程運行的時間：`ps -aux| awk '$2~/^'$P'$/{print?$10}'`" echo?"進程狀態：`ps -aux| awk '$2~/^'$P'$/{print?$8}'`" echo?"進程虛擬內存：`ps -aux| awk '$2~/^'$P'$/{print?$5}'`" echo?"進程共享內存：`ps -aux| awk '$2~/^'$P'$/{print?$6}'`" echo?"--------------------------------"
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二、根據進程名過濾進程信息
會顯示出該進程名包含的所有線程
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#!?/bin/bash
#?Function:?根據輸入的程序的名字過濾出所對應的PID，并顯示出詳細信息，如果有幾個PID，則全部顯示
read?-p?"請輸入要查詢的進程名："?NAME
N=`ps?-aux?|?grep?$NAME?|?grep?-v?grep?|?wc?-l`?##統計進程總數
if?[?$N?-le?0?];then
??echo?"該進程名沒有運行！"
fi
i=1
while?[?$N?-gt?0?]
do
??echo?"進程PID:?`ps?-aux?|?grep?$NAME?|?grep?-v?grep?|?awk?'NR=='$i'{print?$0}'|?awk?'{print?$2}'`"
??echo?"進程命令：`ps -aux | grep $NAME?|?grep?-v?grep?|?awk?'NR=='$i'{print?$0}'|?awk?'{print?$11}'`"
??echo?"進程所屬用戶:?`ps?-aux?|?grep?$NAME?|?grep?-v?grep?|?awk?'NR=='$i'{print?$0}'|?awk?'{print?$1}'`"
??echo?"CPU占用率：`ps -aux | grep $NAME?|?grep?-v?grep?|?awk?'NR=='$i'{print?$0}'|?awk?'{print?$3}'`%"
??echo?"內存占用率：`ps -aux | grep $NAME?|?grep?-v?grep?|?awk?'NR=='$i'{print?$0}'|?awk?'{print?$4}'`%"
??echo?"進程開始運行的時刻：`ps -aux | grep $NAME?|?grep?-v?grep?|?awk?'NR=='$i'{print?$0}'|?awk?'{print?$9}'`"
??echo?"進程運行的時間：` ps -aux | grep $NAME?|?grep?-v?grep?|?awk?'NR=='$i'{print?$0}'|?awk?'{print?$11}'`"
??echo?"進程狀態：`ps -aux | grep $NAME?|?grep?-v?grep?|?awk?'NR=='$i'{print?$0}'|?awk?'{print?$8}'`"
??echo?"進程虛擬內存：`ps -aux | grep $NAME?|?grep?-v?grep?|?awk?'NR=='$i'{print?$0}'|?awk?'{print?$5}'`"
??echo?"進程共享內存：`ps -aux | grep $NAME?|?grep?-v?grep?|?awk?'NR=='$i'{print?$0}'|?awk?'{print?$6}'`"
??echo?"***************************************************************"
??let?N--?i++
done
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三、根據用戶名查詢該用戶的相關信息
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#!?/bin/bash
# Function：根據用戶名查詢該用戶的所有信息
read?-p?"請輸入要查詢的用戶名："?A
echo?"------------------------------"
n=`cat?/etc/passwd?|?awk?-F:?'$1~/^'$A'$/{print}'?|?wc?-l`
if?[?$n?-eq?0?];then
echo?"該用戶不存在"
echo?"------------------------------"
else
??echo?"該用戶的用戶名：$A"
??echo?"該用戶的UID：`cat /etc/passwd | awk -F:?'$1~/^'$A'$/{print}'|awk?-F:?'{print?$3}'`"
??echo?"該用戶的組為：`id $A?|?awk?{'print?$3'}`"
??echo?"該用戶的GID為：`cat /etc/passwd | awk -F:?'$1~/^'$A'$/{print}'|awk?-F:?'{print?$4}'`"
??echo?"該用戶的家目錄為：`cat /etc/passwd | awk -F:?'$1~/^'$A'$/{print}'|awk?-F:?'{print?$6}'`"
??Login=`cat?/etc/passwd?|?awk?-F:?'$1~/^'$A'$/{print}'|awk?-F:?'{print?$7}'`
??if?[?$Login?==?"/bin/bash"?];then
??echo?"該用戶有登錄系統的權限！！"
??echo?"------------------------------"
??elif?[?$Login?==?"/sbin/nologin"?];then
??echo?"該用戶沒有登錄系統的權限！！"
??echo?"------------------------------"
??fi
fi
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四、加固系統的一些配置
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#!?/bin/bash #?Function:對賬戶的密碼的一些加固 read?-p?"設置密碼最多可多少天不修改："?A read?-p?"設置密碼修改之間最小的天數："?B read?-p?"設置密碼最短的長度："?C read?-p?"設置密碼失效前多少天通知用戶："?D sed?-i?'/^PASS_MAX_DAYS/cPASS_MAX_DAYS?'$A''?/etc/login.defs sed?-i?'/^PASS_MIN_DAYS/cPASS_MIN_DAYS?'$B''?/etc/login.defs sed?-i?'/^PASS_MIN_LEN/cPASS_MIN_LEN?'$C''?/etc/login.defs sed?-i?'/^PASS_WARN_AGE/cPASS_WARN_AGE?'$D''?/etc/login.defs echo?"已對密碼進行加固，新用戶不得和舊密碼相同，且新密碼必須同時包含數字、小寫字母，大寫字母！！" sed?-i?'/pam_pwquality.so/cpassword?requisite?pam_pwquality.so?try_first_pass?local_users_only?retry=3?authtok_type=?difok=1?minlen=8?ucredit=-1?lcredit=-1?dcredit=-1'?/etc/pam.d/system-auth echo?"已對密碼進行加固，如果輸入錯誤密碼超過3次，則鎖定賬戶！！" n=`cat?/etc/pam.d/sshd?|?grep?"auth?required?pam_tally2.so?"|wc?-l` if?[?$n?-eq?0?];then sed?-i?'/%PAM-1.0/aauth?required?pam_tally2.so?deny=3?unlock_time=150?even_deny_root?root_unlock_time300'?/etc/pam.d/sshd fi echo??"已設置禁止root用戶遠程登錄！！" sed?-i?'/PermitRootLogin/cPermitRootLogin?no'??/etc/ssh/sshd_config read?-p?"設置歷史命令保存條數："?E read?-p?"設置賬戶自動注銷時間："?F sed?-i?'/^HISTSIZE/cHISTSIZE='$E''?/etc/profile sed?-i?'/^HISTSIZE/aTMOUT='$F''?/etc/profile echo?"已設置只允許wheel組的用戶可以使用su命令切換到root用戶！" sed?-i?'/pam_wheel.so?use_uid/cauth?required?pam_wheel.so?use_uid?'?/etc/pam.d/su n=`cat?/etc/login.defs?|?grep?SU_WHEEL_ONLY?|?wc?-l` if?[?$n?-eq?0?];then echo?SU_WHEEL_ONLY?yes?>>?/etc/login.defs fi echo?"即將對系統中的賬戶進行檢查...." echo?"系統中有登錄權限的用戶有：" awk?-F:?'($7=="/bin/bash"){print?$1}'?/etc/passwd echo?"********************************************" echo?"系統中UID=0的用戶有：" awk?-F:?'($3=="0"){print?$1}'?/etc/passwd echo?"********************************************" N=`awk?-F:?'($2==""){print?$1}'?/etc/shadow|wc?-l` echo?"系統中空密碼用戶有：$N" if?[?$N?-eq?0?];then ?echo?"恭喜你，系統中無空密碼用戶！！" ?echo?"********************************************" else ?i=1 ?while?[?$N?-gt?0?] ?do ????None=`awk?-F:?'($2==""){print?$1}'?/etc/shadow|awk?'NR=='$i'{print}'` ????echo?"------------------------" ????echo?$None ????echo?"必須為空用戶設置密碼！！" ????passwd?$None ????let?N-- ?done ?M=`awk?-F:?'($2==""){print?$1}'?/etc/shadow|wc?-l` ?if?[?$M?-eq?0?];then ??echo?"恭喜，系統中已經沒有空密碼用戶了！" ?else echo?"系統中還存在空密碼用戶：$M" ?fi fi echo?"即將對系統中重要文件進行鎖定，鎖定后將無法添加刪除用戶和組" read?-p?"警告：此腳本運行后將無法添加刪除用戶和組！！確定輸入Y，取消輸入N；Y/N："?i case?$i?in ??????[Y,y]) ????????????chattr?+i?/etc/passwd ????????????chattr?+i?/etc/shadow ????????????chattr?+i?/etc/group ????????????chattr?+i?/etc/gshadow ????????????echo?"鎖定成功！" ;; ??????[N,n]) ????????????chattr?-i?/etc/passwd ????????????chattr?-i?/etc/shadow ????????????chattr?-i?/etc/group ????????????chattr?-i?/etc/gshadow ????????????echo?"取消鎖定成功！！" ;; ???????*) ????????????echo?"請輸入Y/y?or?N/n" esac
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五、實現磁盤分區的
只支持分配主分區和標準的linux文件系統(ext4/xfs)的分區
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#!?/bin/bash #?Function:對硬盤進行分區,得到一個標準的linux文件系統(ext4/xfs)的主分區 cat?/proc/partitions?>?old read?-p?"請輸入你要分區的硬盤(寫絕對路徑，如：/dev/sda)："?A if?[?-e?$A?];then ??echo?"true" else ??echo?"該設備不存在！！" ??exit fi read?-p?"請輸入你要創建的磁盤分區類型(這里只能是主分區，默認按回車即可):"?B read?-p?"請輸入分區數字，范圍1-4，默認從1開始，默認按回車即可："?C read?-p?"請輸入扇區起始表號，默認按回車即可："?D read?-p?"請輸入你要分區的分區大小(格式：如?+5G?)："?E fdisk?$A?<?new F=`diff?new?old?|?grep?"<"?|?awk?'{print?$5}'` echo?"-------------------------------" echo?$F echo?"你想對新分區設定什么類型的文件系統？有以下選項：" echo?"A：ext4文件系統" echo?"B：xfs文件系統" read?-p?"請輸入你的選擇："?G case?$G?in ????????a|A) ???????????mkfs.ext4?/dev/$F ???????????echo?"該分區將被掛載在?"/mnt/$F"?下"? ???????????m=`ls?/mnt/|grep?$F?|?wc?-l` ???????????if?[?$m?-eq?0?];then ????????????mkdir?/mnt/$F ???????????fi ???????????n=`cat?/etc/fstab?|?grep?/dev/$F|?wc?-l` ???????????if?[?$n?-eq?0?];then ??????????????echo?"/dev/$F?????/mnt/$F?????ext4?????????defaults??????????0??????0"?>>?/etc/fstab ???????????else ??????????????sed?-i?'/^/dev/$F/c/dev/$F?????/mnt/$F?????ext4?????????defaults??????????0??????0'?/etc/fstab ???????????fi ???????????mount?-a ???????????df?-Th ;; ????????b|B) ???????????mkfs.xfs?-f?/dev/$F ???????????echo?"該分區將被掛載在?"/mnt/$F"?下"? ???????????m=`ls?/mnt/|grep?$F?|?wc?-l` ???????????if?[?$m?-eq?0?];then ??????????????mkdir?/mnt/$F ???????????fi ???????????n=`cat?/etc/fstab?|?grep?/dev/$F?|?wc?-l` ???????????if?[?$n?-eq?0?];then ??????????????echo?"/dev/$F?????/mnt/$F??????xfs???????defaults??????????0??????0"?>>?/etc/fstab ???????????else ??????????????sed?-i?'/^/dev/$F/c/dev/$F?????/mnt/$F?????xfs?????????defaults??????????0??????0'?/etc/fstab ???????????fi ???????????mount?-a ???????????df?-Th ;; ????????*) ???????????echo?"你的輸入有誤！！" esac
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六、使用一整塊硬盤創建邏輯卷
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#!/bin/bash
#?Function:使用一整塊硬盤創建LVM邏輯卷
read?-p?"請輸入你要做成邏輯卷的硬盤(寫絕對路徑，如：/dev/sda)："?path
if?[?-e?$path?];then
??echo?"true"
else
??echo?"該設備不存在！！"
??exit
fi
pvcreate?$path
echo?"該硬盤已做成物理卷！"
vgcreate?myvg?$path
echo?"該物理卷已加入卷組?myvg?中"
vgs
free=`vgs|?awk?'$1~/myvg/{print}'|awk?'{print?$6}'`
echo?"該物理卷剩余的空間大小為：$free?"
read?-p?"請輸入你要創建邏輯卷的大小(如：1G)："?repy2
lvcreate?-L?$repy2?-n?mylv?myvg
echo?"已成功創建邏輯卷mylv"
echo?"------------------------"
lvs
echo?"------------------------"
echo?"你想對新分區設定什么類型的文件系統？有以下選項："
echo?"A：ext4文件系統"
echo?"B：xfs文件系統"
read?-p?"請輸入你的選擇："?repy3
case?$repy3?in
????????a|A)
???????????mkfs.ext4?/dev/myvg/mylv
???????????echo?"該分區將被掛載在?"/mnt/mylv"?下"?
???????????m=`ls?/mnt/|grep?mylv?|?wc?-l`
???????????if?[?$m?-eq?0?];then
????????????mkdir?/mnt/mylv
???????????fi
???????????echo?"/dev/myvg/mylv?????/mnt/mylv?????ext4?????????defaults??????????0??????0"?>>?/etc/fstab
???????????mount?-a
???????????df?-Th
;;
????????b|B)
???????????mkfs.xfs?-f?/dev/myvg/mylv
???????????echo?"該分區將被掛載在?"/mnt/mylv"?下"?
???????????m=`ls?/mnt/|grep?mylv?|?wc?-l`
???????????if?[?$m?-eq?0?];then
??????????????mkdir?/mnt/mylv
???????????fi
???????????echo?"/dev/myvg/mylv?????/mnt/mylv??????xfs???????defaults??????????0??????0"?>>?/etc/fstab
???????????mount?-a
???????????df?-Th
;;
????????*)
???????????echo?"你的輸入有誤！！"
esac
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七、將一塊硬盤分區，然后分區設置為虛擬卷
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#!?/bin/bash
#?Author:謝公子
#?Date:2018-10-13
#?Function:新建一個分區，并做成邏輯卷
cat?/proc/partitions?>?old
read?-p?"請輸入你要分區的硬盤(寫絕對路徑，如：/dev/sda)："?A
if?[?-e?$A?];then
??echo?"true"
else
??echo?"該設備不存在！！"
??exit
fi
read?-p?"請輸入你要創建的磁盤分區類型(這里只能是主分區，默認按回車即可):"?B
read?-p?"請輸入分區數字，范圍1-4，默認從1開始，默認按回車即可："?C
read?-p?"請輸入扇區起始表號，默認按回車即可："?D
read?-p?"請輸入你要分區的分區大小(格式：如?+5G?)："?E
read?-p?"請輸入你要劃分為邏輯卷的分區盤符(默認回車即可)："?Z
fdisk?$A?<?new
F=`diff?new?old?|?grep?"<"?|?awk?'{print?$5}'`
echo?"-------------------------------"
echo?$F
pvcreate?/dev/$F
echo?"該硬盤已做成物理卷！"
n=`vgs?|?grep?myvg?|wc?-l`
if?[?$n?-eq?0?];then
???vgcreate?myvg?/dev/$F
???echo?"該物理卷已加入卷組myvg中"
else
???vgextend?myvg?/dev/$F
???echo??"該物理卷已加入卷組myvg中"
???vgs
???free=`vgs|?awk?'$1~/myvg/{print}'|awk?'{print?$7}'`
???echo?"該卷組剩余的空間大小為：$free?"
???lvs
???exit
fi
vgs
free=`vgs|?awk?'$1~/myvg/{print}'|awk?'{print?$6}'`
echo?"該卷組剩余的空間大小為：$free?"
read?-p?"請輸入你要創建邏輯卷的大小(如：1G)："?repy2
lvcreate?-L?$repy2?-n?mylv?myvg
echo?"已成功創建邏輯卷mylv"
echo?"------------------------"
lvs
echo?"------------------------"
echo?"你想對新分區設定什么類型的文件系統？有以下選項："
echo?"A：ext4文件系統"
echo?"B：xfs文件系統"
read?-p?"請輸入你的選擇："?G
case?$G?in
????????a|A)
???????????mkfs.ext4?/dev/myvg/mylv
???????????echo?"該分區將被掛載在?"/mnt/$F"?下"?
???????????m=`ls?/mnt/|grep?$F?|?wc?-l`
???????????if?[?$m?-eq?0?];then
????????????mkdir?/mnt/$F
???????????fi
???????????echo?"/dev/myvg/mylv?????/mnt/$F?????ext4?????????defaults??????????0??????0"?>>?/etc/fstab
???????????mount?-a
???????????df?-Th
;;
????????b|B)
???????????mkfs.xfs?-f?/dev/myvg/mylv
???????????echo?"該分區將被掛載在?"/mnt/$F"?下"?
???????????m=`ls?/mnt/|grep?$F?|?wc?-l`
???????????if?[?$m?-eq?0?];then
??????????????mkdir?/mnt/$F
???????????fi
???????????echo?"/dev/myvg/mylv?????/mnt/$F??????xfs???????defaults??????????0??????0"?>>?/etc/fstab
???????????mount?-a
???????????df?-Th
;;
????????*)
???????????echo?"你的輸入有誤！！"
esac
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審核編輯：湯梓紅
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