Commands using echo (1,545)
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0dir=/rom; a=$(find $dir -name \*.sh -exec cat '{}' \; | egrep -cv '^[[:space:]]*#'); b=$(find $dir -name \*.sh -exec cat '{}' \; | egrep -c '^[[:space:]]*#'); echo $((a+b)) lines = ${a} sloc [$((a*100/(a+b)))%] + ${b} comments [$((b*100/(a+b)))%]
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Convert any text you type into sha1 Show Sample Output
0echo -n "sua mensagem" | openssl sha1 -
echo 'Current hour' hour=$(date +%H) if [ $hour -gt 9 -a $hour -lt 23 ]; then echo -n '*'; else echo -n '#'; fi; echo ' '$hour; echo 'Test around the clock:' for hour in {0..23} {0..23}; do if [ $hour -gt 9 -a $hour -lt 23 ]; then echo -n '*'; else echo -n '#'; fi; echo ' '$hour; done echo 'If you need to depend on UTC, just add `-u` flag to `date` command' Show Sample Output
0hour=$(date +%H); if [ $hour -gt 9 -a $hour -lt 23 ]; then echo -n '*'; else echo -n '#'; fi; echo ' '$hour; -
0for item in \\ \| / - \\ \| / - \\ \| / - \\ \| / - \\ \| / - \\ \| / -; do echo -ne "$item \r"; sleep .2; done; echo
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Adds up the used disk space on all hard drives that are directly connected to the machine (i.e. no network mounts etc.) Assumes there are no IDE drives present. Show Sample Output
0echo $(df -BG | grep sd | awk '{print $3}' | paste -sd+ | tr -d G | bc) GiB used in total -
Order and uniq
0declare -a array=($(tail -n +2 /proc/net/tcp | cut -d":" -f"3"|cut -d" " -f"1")) && for port in ${array[@]}; do echo $((0x$port)); done | sort | uniq -
0echo `cat file.txt`
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A way for tracking times in bash Show Sample Output
0stf=$(date +%s.%N);st=${stf/.*/};sn=%{stf/*./};for ((;;));do ctf=$( date +%s.%N );ct=${ctf/.*/};cn=${ctf/*./}; echo -en "\r$(echo "scale=3; $ctf-$stf" | bc)";done -
Just add a format to chronometer in bash Show Sample Output
0stf=$(date +%s.%N);st=${stf/.*/};sn=%{stf/*./};for ((;;));do ctf=$( date +%s.%N );ct=${ctf/.*/};cn=${ctf/*./}; dtf=$(echo "scale=3; $ctf-$stf" | bc); dt=${dtf/.*/}; dt=${dt:=0};echo -en "\r$(date -u -d @$dt "+%H:%M:%S.${dtf/*./}")";done -
to find and cut between to strings with grep and cut Show Sample Output
0echo '<div class="Btn">link to open </div>' | grep -oP '(?<="Btn").*?(?= </div>)' | cut -d ">" -f2 -
Will prepend date and time in the following format: dd-mm-yyyy@hh:mm:ss (24hours format) and redirect it to make.out file Show Sample Output
0make -j 2>&1 | while IFS= read -r line; do echo "$(date +"%d-%m-%Y@%T") $line"; done > make.out -
0synclient TouchpadOff=$(synclient -l | grep -q 'TouchpadOff.*1'; echo $?)
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This command calculates the XOR from two given HEX numbers ($1 and $2) Show Sample Output
0echo $(( 0x$1 ^ 0x$2 )) -
0echo 'man-db man-db/auto-update boolean false' |sudo debconf-set-selections
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0if nc -zw1 google.com 443 2>/dev/null; then echo 'Connected!'; fi
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The given file may contain any kind of characters. This is compatible for most simple mathematical operation. For the first number found, it will be replaced by the result of a factor operation of 1000. To change the filename or multiplactor or number regular expression, change the first fixed values. Show Sample Output
0n=1000;f="test.csv";r='([0-9]+.{0,1}[0-9]*)';echo -n "" > new_${f};cat $f | while read l;do val=`echo $l | egrep -o $r` ; if [ ! -z $val ];then newval=`echo $val \* $n | bc -l`;l=`echo $l | sed "s/$val/$newval/"`;fi;echo $l >> new_${f};unset val;done -
0if grep ENABLED=yes /etc/ufw/ufw.conf>/dev/null; then echo "enabled"; else echo "disabled"; fi
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0(sleep 1;echo EHLO MAIL;sleep 1;echo "MAIL FROM: <a@foo.de>";sleep 1;echo "RCPT TO: <b@bar.eu>";sleep 1;echo DATA;sleep 1;echo Subject: test;sleep 1;echo;sleep 1;echo Message;sleep 1;echo .;sleep 1;)|openssl s_client -host b.de -port 25 -starttls smtp
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Show file count into directories. Usefull when you try to find hugh directories that elevate system CPU (vmstat -> sy) Show Sample Output
0find / -type d | while read i; do ls $i | wc -l | tr -d \\n; echo " -> $i"; done | sort -n -
splitting email by @ with awk Show Sample Output
0echo $mail | awk -F'@' '{print $2}' -
0obase=16; echo "$(date +%s)" | bc | xxd -r -p | base32
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0for i in (aws s3api list-buckets --query "Buckets[].Name" | cut -d"," -f1 | grep -vE "\[|\]"); echo $i ; aws s3api get-bucket-policy --bucket (echo $i | xargs); end
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0echo "This is the message body" | mutt -a "/path/to/file.to.attach" -s "subject of message" -- recipient@domain.com
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Disable password expiration and clear password history for VMware vcenter appliance
0chage -M -1 root; echo "" > /etc/security/opasswd -
0echo "This is the message body" | mutt -a "/tmp/aysad.gz" -s "Vv..Pp..nn" -- aysad@gmail.com
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