Linux Command Miscellaneous
常用命令
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$command 3>&1 1>&2 2>&3 交换stdout和 stderr
cat -n file or cat -b file
cp --backup=t source.file target.file
find -printf "%C@ %p\n"|sort
find . -print -exec chmod 777 {} \;
$command 3>&1 1>&2 2>&3 交换stdout和 stderr
lshw -C display
lsusb -d 产品ID -v
lsusb -s devnum -v
find -type l -xtype d
find /path/to/dir -type f | grep -o '\.[^./]*$' | sort | uniq
du -h /path | sort -h
du -d /path
free -m | awk '/cache:/ { printf("%d%\n",$3/($3+$4)*100)}' 空闲内存百分比
pgrep -f 'process.*argument.*'
ps -p $$
ps auxf
find . -name 'pattern'| xargs du -hc
find . -mtime +30 -exec mv {} old/ \;
find . -name "*.cpp" |xargs cat|wc -l
find . -name "*.cpp"|xargs cat|grep -v ^$|wc -l
find . -type f -name '*.pm' -printf '%6s %p\n' | sort -nr | head -n 50
find -iname \*.pdf -print0 | xargs -0 pdfgrep -i "my search text"
pwdx pid
ps -ef | grep [f]oo | awk '{print $2}' | xargs kill -9
du -sm /home/* | sort -n | tail -10
ls -1 | rename 's/\ /_/'
find / -iname '*.pdf' -print -exec pdftotext '{}' - \; | grep --color -i "unix"
sed '/^ #.*DEBUG.*/ s/^# //' $FILE
pv file1 > file2
rename -v 's/ /_/g' *
vim -c new myfile
rm **/*(-@)
function garg () { tail -n 1 ${HISTFILE} | awk "{ print \$$1 }" }
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监控
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top -b -d 1 | sed 's/^/varName schoolId/' | awk '{print $1,$2,$3,$4,$11,$12,systime(),$14}' | grep --line-buffered firefox
tcpdump -w - |pv -bert >/dev/null
ps axu | grep [a]pache2
ifconfig -a| grep -o -E '([[:xdigit:]]{1,2}:){5}[[:xdigit:]]{1,2}'
PID=httpd ; ps aux | grep $PID | grep -v grep | awk '{print $2}' | xargs kill -9
myLongScript && echo -e '\a' || (echo -e '\a'; sleep 1; echo -e '\a')
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awk
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awk -F '|' '{print "|"$2"|" "["$3"]("$5")|"$4"|"}' filename
awk 'gsub(/^ *| *$/,"")' filename
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##关闭地址空间随机化(ASLR)
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| echo 0 > /proc/sys/kernel/randomize_va_space
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curl
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| curl -I http://localhost
curl url | egrep -o '(http|https)://[a-z0-9]*\.[a-z0-9]*\.[a-z0-9]*'|sort |uniq
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curl–模拟post登陆
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| ACCOUNT=xxx
PASS=xxx
curl -d "username=$ACCOUNT&password=$PASS" http://p.nju.edu.cn/portal_io/login
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| mmv "*.txt" "#1.md" 批重命名文件夹下的所有文件的拓展名，比如把txt文件重命名为md文件
convert example.png -resize 100x100! output.png 缩放图片
ffmpeg -i initial.mkv -acodec libvorbis -ab 128k -ac 2 -vcodec libx264 -vpre max -crf 22 -threads 0 final.mkv
ffmpeg -i source.flv -vn acodec copy destination.mp3
mencoder mf://*.jpg -mf fps=50:type=jpg -ovc raw -oac copy -o out50fps.avi
gs -q -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -sOutputFile=${out}.pdf ${filename1} ${filename2} ...
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解压命令
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| tar jxvf
tar -xvf
bzip2 -d
解压tar.bz2
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机器相关
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| sudo dmidecode -s system-product-name
sudo dmidecode --type=processor | grep -i -A 1 charac
pacmd set-sink-volume 0 0x10000
```
```sh
磁盘复制 dd if=/dev/sda of=/dev/sdb
刻录光盘 dd if=XXXX.iso of=/dev/sdb
烧录cd cdrecord -v dev=/dev/cdrom yourimage.iso
从磁盘中创建一个CD/DVD的ISO镜像 dd bs=1M if=/dev/scd0 of=./filename.iso OR readom -v dev='D:' f='./filename.iso' speed=2 retries=8
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sendmail命令–cmd下发送邮件
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| sendemail -s ${mail-server}
-f ${my_email}
-t ${dst-email}
-u WTF
-m "Utilize command line tools - [sendemail] to send an e-mail to you."
-xu ${username}
-xp ${password}
-o tls=auto
-a ${attatch-file}
ex:
sendemail -s smtp.nju.edu.cn
-f mg1433094@smail.nju.edu.cn
-t 1826588117@qq.com
-u WTF
-m "Utilize command line tools - [sendemail] to send an e-mail to you."
-xu mg1433094@smail.nju.edu.cn
-xp password
-o tls=auto
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MYSQL
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| mysql -u root -p -N -e"show processlist\G;" | egrep "Host\:" | awk -F: '{ print $2 }' | sort | uniq -c
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