Commands using tr (313)
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0sed 's/\"/\\\"/g' json_file | tr -d '\n' | tr -d '[[:blank:]]'
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Creates one letter folders in the current directory and moves files with corresponding initial in the folder.
2for i in *; do I=`echo $i|cut -c 1|tr a-z A-Z`; if [ ! -d "$I" ]; then mkdir "$I"; fi; mv "$i" "$I"/"$i"; done -
Random text of length "$1" without the useless cat command.
1genRandomText() { tr -cd '[:alpha:]' < /dev/urandom | head -c "$1"; } -
0clear && curl --silent http://www.commandlinefu.com/commands/by/dunryc | grep "div class" | grep command |tr '>' '\n' | grep -v command |sed 's/.....$//'
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0id <user_name> | sed 's/,/\n/g' | tr ' ' '\n'
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nsacodenamegenerator dot com is no more outputs random two words together in capital letters Show Sample Output
0shuf -n 2 /usr/share/dict/words | tr -dc [:alnum:] | tr '[:lower:]' '[:upper:]'; echo -
Extract a color palette from a image useful for designers. Example usage:
extract-palette myawesomeimage.jpg 4Where the first argument is the image you want to extract a palette from. The second argument is the number of colors you want. It may be the case where you want to change the search space. In that case, change the -resize argument to a bigger or smaller result. See the ImageMagick documentation for the -resize argument. Show Sample Output1extract-palette() { convert "$1" -resize 300x -dither None -colors "$2" txt: | tail -n +2 | tr -s ' ' | cut -d ' ' -f 3 | sort | uniq -c | sort -rn | tr -s ' ' | cut -d ' ' -f 3;} -
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 " -> $i"; done | sort -n -
0cat [mysql_dump_file] | grep "Table structure" | cut -c 30- | tr '\n' ' ' | rev | cut -c 2- | rev | tr -d '`'
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Read vmargs.txt, which is a text file that could either be DOS-style (\r\n) or UNIX-style (\n) line endings and join the lines with a space separator. Can this be shortened/made more elegant? Show Sample Output
1tr -d '\r' < vmargs.txt | tr '\n' ' ' -
Seems to work on Ubuntu 14.02 LTS Show Sample Output
0objdump -s ./HelloWorld | grep -v '^ [0-9a-f][0-9a-f][0-9a-f][0-9a-f] \b' | grep -v 'Contents' | grep -v './' | cut -d' ' -f 3-6| sed 's/ //g' | sed '/./!d' | tr -d '\n'| sed 's/.\{2\}/&\\x/g' | sed 's/^/\\x/'|sed 's/..$//'|sed 's/^/"/;s/$/"/g' -
Grab the multiline webhook URL definition from alarm-show. Basically it parse the following into an URL only: ```root@ctl01:/home/hombre# ceilometer alarm-show 1383a6be-fb73-4955-9991-8d65a8a23d60 +---------------------------+--------------------------------------------------------------------------+ | Property | Value | +---------------------------+--------------------------------------------------------------------------+ | alarm_actions | [u'http://10.40.50.20:8000/v1/signal/arn%3Aopenstack%3Aheat%3A%3A3d6118 | | | cc789c4db3b06fb3a382494b67%3Astacks%2Fhombre-V2R1%2Fd189e704-4f99-467 | | | 5-9ec2-eaadkc0ae8af5%2Fresources%2Fweb_server_scaleup_policy?Timestamp=20 | | | 16-10-03T14%3A05%3A27Z&SignatureMethod=HmacSHA256&AWSAccessKeyId=09sdkd4e | | | d854347189383aba11d6353c6&SignatureVersion=2&Signature=MXxlKLZ%2BT4y4y%2 | | | BOuuAmxTLIVQ9ONKx2jKSZKHYIy83Q%3D'] | ```
0curl -X POST -i `ceilometer alarm-show 1383a6be-fb73-4955-9991-8d65a8a23d60 | tr '\n' ' ' | sed -e 's/.*\[\(.*\)\].*/\1/' -e 's/[| ]*//g' -e 's/^u//' -e "s:'::g"` -
0sudo apt-get purge `dpkg -l | grep php| awk '{print $2}' |tr "\n" " "`
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remove the IP from proxy reverse server and parentesis from real IP obtained from X-forwarder_IP Show Sample Output
0tr -s ' ' | cut -d' ' -f2- |cut -c2- |sed 's/)//1' -
Extracts the binary from the .text section and escapes it. This puts it in a form ready to use in a program. Show Sample Output
0objdump -d -j .text ExeHere | grep -e '^ ' | tr '[[:space:]]' '\n' | egrep '^[[:alnum:]]{2}$' | xargs | sed 's/ /\\x/g' | sed -e 's/^/\\x/g' -
This command line detect ldap hosts, by mandatory dns entry, then ping them to detect response average. based on ping response average it sorts and print the faster server in first output line Show Sample Output
2host -t srv _ldap._tcp | sed "s/.*[ ]\([^ ]*\)[.]$/\1/g" | xargs -i ping -c 1 {} | grep -E "(statistics|avg)" | sed "s/^--- \([^ ]*\).*/,\1:/g"|tr -d "\n" | tr "," "\n" | sed "1d;s|^\([^:]*\).*=[^/]*/\([^/]*\).*|\2\t\1|g" |sort -n -
0hostname -i | tr " " "\n" | grep -v "::\|^169.254\|^127.0.0.1" | cut -d"." -f1-3
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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 $3}' | paste -sd+ | tr -d G | bc) GiB used in total -
0tr "\|\;" "\n" < ~/.bash_history | sed -e "s/^ //g" | cut -d " " -f 1 | sort | uniq -c | sort -rn | head -20
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If you have to stop a bunch of processes or just want to get a list of their ID's, us this replacing with your process. Then you can use a loop to kill -9 all of them. Show Sample Output
0sudo <PROC_NAME> -aux |grep pals_ |tr -s " " |cut -d " " -f2 -
Retrieves AS route prefixes for IPv4 and IPv6, aggregates the routes to the minimal set, and adds netfilter rules to reject them. Relies on two helpers: IPv4 - "aggregate" by Joe Abley (package name 'aggregate'), IPv6 - "aggregate6" by Job Snijders ( https://github.com/job/aggregate6 ) Show Sample Output
0ASN=32934; for IP in 4 6; do whois -h riswhois.ripe.net \!${IP/4/g}as${ASN} | sed -n '2 p' | tr \ \\n | aggregate${IP/4/} | while read NET; do ip${IP/4/}tables -I INPUT -S ${NET} -j REJECT; done; done -
Should work even when very large files exist.
4tree -isafF /var|grep -v "/$"|tr '[]' ' '|sort -k1nr|head -
Check that all websites on the current server are working as expected. This is a quick easy way to do that. Show Sample Output
0grep -h 'Server\(Name\|Alias\)' /etc/httpd/conf.d/*.conf | sed 's#\s*Server\(Name\|Alias\)\s*##g' | tr ' ' "\n" | xargs -I{} sh -c 'echo {},`curl -s -o /dev/null -w "%{http_code}" {}`' -
This server can be access by a browser or other remote terminal with ncat. I have to use de test && break to allow ctrl-c to close. Show Sample Output
0while [ 1 ]; do cat /dev/urandom | tr -dc ' -~' | head -c 10 | ncat -l 8080 &> /dev/null; test $? -gt 128 && break; done -
debian kernel 4.4.6 Show Sample Output
0grep "checksum error at logical" /var/log/messages | egrep -o "[^ ]+$" | tr -d ')' | sort | uniq - 1 2 3 > Last ›
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