All commands (14,014)
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AWS provides a method to audit for obsolete AWS security groups. From their documentation: "Describes the stale security group rules for security groups in a specified VPC. Rules are stale when they reference a deleted security group in a peer VPC, or a security group in a peer VPC for which the VPC peering connection has been deleted." Show Sample Output
0aws ec2 describe-vpcs --query 'Vpcs[*].VpcId' --output text |xargs -t -n1 aws ec2 describe-stale-security-groups --vpc-id -
1cp file{,.$(date -d @$(stat -c '%Y' file) "+%y%m%d")}
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6watch -n 1 'ps -eo pid,ppid,cmd,%mem,%cpu --sort=-%mem | head'
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Change video orientation in metadata only
1ffmpeg -i in.mov -c copy -metadata:s:v:0 rotate=90 out.mov -
1curl -fSs https://1.1.1.1/cdn-cgi/trace | awk -F= '/ip/ { print $2 }'
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scan whole specific network for active online ips Show Sample Output
6nmap -n -sn 192.168.1.0/24 -oG - | awk '/Up$/{print $2}' -
spectrum protect's dsmc command shows file names and total amount of restore. This command shows which files are actually open and their siz in GB and highlights the change to the previous output Show Sample Output
1watch -n60 -d 'lsof -w /filesysname|grep -v NAME|awk '\''{$7=int($7/1073741824) " GB"; print $7, $9}'\''' -
Transpose parameter: 0 = 90CounterCLockwise and Vertical Flip (default) 1 = 90Clockwise 2 = 90CounterClockwise 3 = 90Clockwise and Vertical Flip
-1ffmpeg -i in.mov -vf "transpose=1" out.mov -
0curl checkip.amazonaws.com
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Derived from current time down to minutes. Show Sample Output
1DATE=`date +"%y%m%d%H%M"`; CHECKSUM=`printf "%02d" $((DATE%97))`; echo $DATE$CHECKSUM |sed -e 's#\([0-9]\{3\}\)\([0-9]\{4\}\)\([0-9]\{5\}\)#+++\1/\2/\3+++#' -
Use xargs command to make one line.
0dpkg --get-selections | grep -Evw 'deinstall$' | cut -f1 | sort -u | xargs -
This command lists all currently installed packages in ubuntu in a single line, for example to use later with apt install. Show Sample Output
0dpkg --get-selections | grep -v deinstall | sort -u | cut -f 1 | tr '\r\n' ' ' | sed '$s/ $/\n/' -
1parallel -j200% -n1 -a textfile-with-hosts.txt nc -vz {} ::: 22
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-1xargs -i -P 1200 nc -zvn {} 22 < textfile-with-hosts.txt
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include in the list human readable hidden files too:
file .* *|grep 'ASCII text'|sort -rk2more reliable command:ls|xargs file|grep 'ASCII text'|sort -rk2and include hidden files:ls -a|xargs file|grep 'ASCII text'|sort -rk21file *|grep 'ASCII text'|sort -rk2 -
GNU grep's PCRE(Perl-compatible regular expressions).
1grep -Po '^(.*?:\K)?.*' -
Delete the beginning of each line until first match of given character, in this case it's ":" Does it on all lines. The given character is deleted also, and can be a space.
0sed 's/^[^:]*://g' -
1convmv --lower --notest FILE
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2sysctl machdep.xcpm.cpu_thermal_level
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8ssh -J [email protected]_host [email protected]_host
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It finds, specifically, the connections to the HTTP and HTTPS ports as source ports. You can check for destination ports as well. Show Sample Output
6ss -o state established '( dport = :http or sport = :https )' -
1 = on ac, 0 = on bat
1cat /sys/class/power_supply/AC/online -
Just an alternative for `acpi -b` Show Sample Output
0eval "$(printf "echo %s \$((%i * 100 / %i))\n" $(cat $(find /sys -name energy_now 2>/dev/null | head -1 | xargs dirname)/{status,energy_{now,full}}))%" -
Bash's here string
12sudo -s <<< 'apt update -y && apt upgrade -y' -
Number of days back: change/append arbitrary amount of '\|'$[$(date +%Y%j)-x] expressions or specify any n-th day before today for a single day (you have to replace x with 3, 4, 5, whatever ... above I replaced it with 1 and 2 to get listing for yesterday and day before yesterday and 0 for today was not necessary, so left out). Q: How to narrow to *.pdf , *.png, *.jpg, *.txt, *.doc, *.sh or any type of files only? A: Pipe to grep at the end of command. Even shorter:
cd && day=3;for a in $(seq $day -1 0);do tree -aicfnF --timefmt %Y%j-%d-%b-%y|grep $[$(date +%Y%j)-$a];doneHere it's only needed to change amount of variable day to list period of days back - here is set to three days back (the seq command is adjusted for listing the oldest stuff first). Show Sample Output-2cd && tree -aicfnF --timefmt %Y%j-%d-%b-%y|grep $(date +%Y%j)'\|'$[$(date +%Y%j)-1]'\|'$[$(date +%Y%j)-2] - ‹ First < 3 4 5 6 7 > Last ›
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