Commands using tr (349)
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All files in the directory will be renamed replacing every space in the filename by "_" (underline) and converting upper case characters to lower case characters. e.g. Foo Bar.txt --> foo_bar.txt
0for file in * ; do mv "$file" `echo "$file" | tr ' ' '_' | tr '[A-Z]' '[a-z]'`; done -
Translates first set into second set Show Sample Output
0tr a-z A-Z < file.txt -
Convert long list of ' ' to a single space. Compress space and other characters. Show Sample Output
0tr -s ' ' -
0ssh-keygen -l -f [pubkey] | cut -d ' ' -f 2 | tr -ds '\n:' ''
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If there are spaces won't work.
0export PATH= $(echo $PATH | tr ':' '\n' | awk '!/matching string/' | paste -sd:) -
Copying and pasting from Office documents open in Office:mac can dirty your files with Windows CRLF and (inexplicably) Classic Mac OS LF newlines, which can break some tools. This snippet replaces them with good ol' Unix LF newlines.
0pbpaste | tr '\r\n' '\n' | tr '\r' '\n' | pbcopy -
0lsof -p `pidof pidgin` | awk '{ print $9 }'|egrep `hostname` | grep -o ">[^:]\+:" | tr -d ":>" | while read line; do host $line; done;
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0head -c7 /dev/urandom|base64|tr -d '='
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0tr -dc '[:graph:]' </dev/urandom | head -c30; echo
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Lauching an app including jars in an adjacent lib folder to its classpath
0java -jar app.jar -cp $(echo lib/*.jar | tr ' ' ':') -
0tr -d '\r' < <input> > <output>
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0cd ~/.msf4/loot && cat *mscache* | cut -d '"' -f 2,4 | sed s/\"/\:/g | tr -cd '\11\12\40-\176' | grep -v Username | cut -d : -f 1,2 | awk -F':' '{print $2,$1}' | sed 's/ /:/g' > final.dcc.hash
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0dig @resolver1.opendns.com myip.opendns.com | grep ^myip.opendns.com | tr '\t' : | cut -d: -f5
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Used in OS X. tr "\n" ";" may be replaced by echo ";" with linux versions of date. I reused ping -q -c 1 www.google.com|tail -1|cut -d/ -f5 Show Sample Output
0while true; do (date | tr "\n" ";") && ping -q -c 1 www.google.com|tail -1|cut -d/ -f5 ;sleep 1; done >> uptime.csv -
0nmap -sP 192.168.0.* | grep Host | tr "(" ")" | cut -d\) -f2
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This line unbuffers the interactive output of rsync's --progress flag creating a new line for every update. This output can now be used within a script to make actions (or possibly piped into a GUI generator for a progress bar)
0rsync --progress user@host:/path/to/source /path/to/target/ | stdbuf -oL tr '\r' '\n' >> rsyncprogress.txt -
Replace $USER with the username of the Reddit user in question. To get comment karma instead run...
curl -s http://www.reddit.com/user/$USER/about.json | tr "," "\n" | grep "comment_karma" | tr ": " "\n" | grep -E "[0-9]+" | sed s/"^"/"Comment Karma: "/Show Sample Output0curl -s http://www.reddit.com/user/$USER/about.json | tr "," "\n" | grep "link_karma" | tr ": " "\n" | grep -E "[0-9]+" | sed s/"^"/"Link Karma: "/ -
Counts of messages by recipient, with frozen messages excluded. Show Sample Output
0sudo /usr/sbin/exim -bp | sed -n '/\*\*\* frozen \*\*\*/,+1!p' | awk '{print $1}' | tr -d [:blank:] | grep @ | sort | uniq -c | sort -n -
0shuf -n4 /usr/share/dict/words | tr '\n' ' '
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Took one of the samples, added capitalization and removes in between spaces. The final "echo" is just for readability. Cheers Show Sample Output
0shuf /usr/share/dict/words |grep "^[^']\{3,6\}$" |head -n4 | sed -e "s/\b\(.\)/\u\1/g" | tr -d '\n'; echo -
My first command :) I made this command to log public addresses of a virtual interface who connects random VPN servers around the world. Show Sample Output
0(date "+%d-%m-%Y %H:%M:%S";curl -s --interface lo:1 ifconfig.me| xargs -t geoiplookup 2>&1)|sed -e 's/geoiplookup/IP:/g' -e 's/GeoIP Country Edition/Country/g'|tr -s "\n" " "|sed 'a\ ' -
I did not come up with this one myself, but found this somewhere else several months ago. Show Sample Output
0openssl rand -hex 1 | tr '[:lower:]' '[:upper:]' | xargs echo "obase=2;ibase=16;" | bc | cut -c1-6 | sed 's/$/00/' | xargs echo "obase=16;ibase=2;" | bc | sed "s/$/:$(openssl rand -hex 5 | sed 's/\(..\)/\1:/g; s/.$//' | tr '[:lower:]' '[:upper:]')/" -
Uses urandom and tr to generate a random password. Change the value of head -c## for the lenght of the password. Show Sample Output
0echo $(< /dev/urandom tr -dc _A-Z-a-z-0-9 | head -c10) -
This lists the number of ogg/mp3/wav/flac files in each subdirectory of the current directory. The output can be sorted by piping it into "sort -n". Show Sample Output
0find . -type d -maxdepth 1 -print0 | xargs -0 -I{} sh -c 'find "{}" -type f | grep "ogg\|mp3\|wav\|flac$" | wc -l | tr -d "\n"; echo " {}"' -
This snippet will produce an alpha-numeric 16 character password Show Sample Output
0< /dev/urandom tr -dc _A-Z-a-z-0-9 | head -c${1:-16};echo; - ‹ First < 8 9 10 11 12 > Last ›
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