ckh2023

ÕªÒª£º 1. uniq È¥ÖØ [root@kvm ~]# cat 1.txt 10 20 30 40 30 30 50 70 70 70 80 [root@kvm ~]# cat 1.txt | uniq 10 20 30 40 30 50 70 80 [root@kvm ~]# [root@kvm ~]# ÔĶÁÈ«ÎÄ

ÕªÒª£º 1.ÊäÈëÒ»´®Êý×ÖÅÅÐò #!/bin/bash function paixu() { arr=($@) len=${#arr[@]} for ((i = 1; i < len; i++)); do for ((j = 0; j < len - i; j++)); do for ((m = j + 1; ÔĶÁÈ«ÎÄ

ÕªÒª£º 1.°²×°°ü yum -y install lvm2 2.´´½¨¾í×é # 1. ²é¿´ËùÓеÄvdbÅÌ [root@stream9 ~]# lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS vda 253:0 0 20G 0 disk ©¸©¤vda1 253:1 0 ÔĶÁÈ«ÎÄ

ÕªÒª£º 1.×Ö·û´®°üº¬×Ó´® # ʹÓ÷½·¨1 [root@vm1 zk]# [[ "aaabb" =~ "bb" ]] && echo "°üº¬" || echo "²»°üº¬" °üº¬ [root@vm1 zk]# [root@vm1 zk]# [[ "aaab" =~ "bb" ]] && echo "°üº¬" | ÔĶÁÈ«ÎÄ

ÕªÒª£º 1. ²é¿´Îļþºó/Ç°¼¸ÐÐ # tail => β°Í # head => Í· # ²é¿´ºó5ÐÐ [root@stream9 ~]# cat 1.txt 1 2 ... 19 20 [root@stream9 ~]# [root@stream9 ~]# tail -5 1.txt 16 17 18 19 ÔĶÁÈ«ÎÄ

ÕªÒª£º Ò».±äÁ¿ 1.×Ô¶¨Òå±äÁ¿ 1.¶¨Òå±äÁ¿£º±äÁ¿Ãû=±äÁ¿Öµ # ±äÁ¿Ãû²»ÄÜÊÇ´¿Êý×Ö µÈºÅÁ½±ß²»ÄÜÓпոñ ÖµÀïÃæÓпոñ±ØÐëÓÃÒýºÅ°üÆðÀ´ name="niubi666" 2.ÒýÓñäÁ¿ $±äÁ¿Ãû echo $name niubi666 3.Öظ´¶¨Òå±äÁ¿ 1) aaa=123 aaa=1122 echo $aa ÔĶÁÈ«ÎÄ

ÕªÒª£º Ò».½Å±¾³ÌÐò 1.½Å±¾Ö´Ðз½Ê½ Ö´ÐÐ1£ºbash file1 # !/bin/bash ½Å±¾ÉùÃ÷ echo "ÄãºÃ£¡" [root@kvm ~]# vim aaa.sh [root@kvm ~]# bash aaa.sh ÄãºÃ£¡ Ö´ÐÐ2£ºsh file1 [root@kvm ~]# sh aaa.s ÔĶÁÈ«ÎÄ

ÕªÒª£º Ò».ÅÅÐò 1.ðÅÝÅÅÐò #!/bin/bash function maopao_paixu(){ arr=($@) # »ñÈ¡Êý×éµÄ³¤¶È len=${#arr[@]} #Íâ²ãÑ­»·ÓÃÀ´¶¨Òå±È½ÏÂÖÊý£¬±È½ÏÂÖÊýΪÊý×鳤¶È¼õ1£¬ÇÒ´Ó1¿ªÊ¼ for ((i=1; i<len; i++)); do #ÄÚ²ãÑ­»·ÓÃÀ´ ÔĶÁÈ«ÎÄ

ÕªÒª£º 1.´ÅÅÌ·ÖÇø # 1. ²é¿´ÏÖÓдÅÅÌ # ÇëÌáÇ°´´½¨ÅÌ vdb => qemu-img create -f qcow2 disk1.img 10G # ´´½¨ÐéÄâ»úͬʱ ´´½¨disk1.img ÔÚxmlÎļþ Ò²ÐèÌí¼Ódisk1´ÅÅ̲¿·Ö # Ìí¼Óµ½ÃèÊöÎļþ xml [root@stream9 ~]# l ÔĶÁÈ«ÎÄ

ÕªÒª£º 1.xxx #!/bin/bash CPU_MODE=$(virsh capabilities | grep "<model>.*</model>" | awk -F[\<\>] '{print $3}' | head -1) IMAGE_DIR=/var/lib/libvirt/images XM ÔĶÁÈ«ÎÄ