Maybe a good idea. It’s harder to recognize, for someone which is looking to your keyboard, while you typing in your password. I’ve tried it under Debian and it was no problem. For example we want a user with the password End Of Text or in other words CTRL + C. I did this with … Read more
This will work only for your case and is not parsing HTML. DISCLAIMER First read: https://stackoverflow.com/a/1732454/7939871 This parsing with a sed Search-and-replace Regular Expression is a shortcut interpretation. It is in no way for use in any kind of production setup; as it would break on so many valid HTML syntax or layout variations like: … Read more
what can be improved on a given random function to make it more random or for a bigger range or something else? and therefore no SRANDOM can be used up to now. How to improve the randomness of the fuction above, if possible ? Sooo write your own SRANDOM with your own semantics. Ex: srandom() … Read more
Convert binary, octal, decimal and hexadecimal values between each other in BASH with bc and printf Some relevant Q&A: Understand “ibase” and “obase” in case of conversions with bc? TL;DR: ibase and obase params order matters, but not always. Hex values must be in UPPERCASE. Convert a character from and to its decimal, binary, octal, … Read more
Sed can do it as follows: sed -n ‘/^======/{:a;N;/\n——/!ba;/score +/p}’ infile ====== Ann Smith score + —— where -n prevents printing, and /^======/ { # If the pattern space starts with “======” :a # Label to branch to N # Append next line to pattern space /\n——/!ba # If we don’t match “——“, branch to … Read more
<(command) is a bashism called Process substitution You have to run your script with bash, eg do bash script.bash Or if you want to use sh, you could write the results to a file, like this : grep eth0 /proc/net/dev > file1 sleep 1 ; grep eth0 /proc/net/dev > file2 diff file1 file2 7 solved … Read more
Easy in perl perl -pe ‘s-(\d+.?\d*)-($1/1000)-ge’ file add tube 3033.303 2998.20695111 106.1801625 0.060325 6.22260621 y 0 0 0 add cube 3027.18924332 3032.17578955 114.50875 0.1689 6.17076909 y 0 0 0 0 solved Unit conversion from mm to m in text file with text and numbers
The algorithm to sort this problem is simple, just like you said in your question description, sort characters in each word first, then sort these sorted-word again. Like this: $ echo heya64 this is21 a good89 day91 | perl -anE ‘say(join ” “, sort(map { join “”, sort split // } @F))’ 12is 19ady 46aehy … Read more
Even though 5 persons down voted my question, I found my on way to solve the problem. Here is the code which I used. It is written in Python. enter codefrom numpy import * from math import * import operator f = open(‘Data_Genergy_26.txt’, ‘r’) lines = f.readlines() # initialize some variable to be lists: r … Read more
I am not sure if it is what you need, yet you can use sed in bash. I also assume that your data is stored in a file called temptest2 sed “s/\(.*Specialty.*\)\”/\1\n/g” temptest2 Use -i to save the output to the temptest2 () specify a field for you, which is being called by \1 and … Read more
You can go for the following two solutions: grep -ie ‘b[^e]’ input_file.txt or grep -ie ‘b.’ input_file.txt | grep -vi ‘be’ The first one does use regex: ‘b[^e]’ means b followed by any symbol that is not e -i is to ignore case, with this option lines containing B or b that are not directly … Read more
With awk: awk ‘BEGIN{FS=”[ ,]”; OFS=”,”} {for (i=2; i<=NF; i++) print $i,$1}’ file Output: foo,ted bar,ted zoo,ted ket,john ben,john See: 8 Powerful Awk Built-in Variables – FS, OFS, RS, ORS, NR, NF, FILENAME, FNR solved How can I manipulate text in bash? [closed]
I forgot almost everything about bash scripting. but I think you can do something like this. files=(file1 file2 file3 file4) for i in `seq 4` do j=$(($i-1)) f[$j]=`cat ./temp/${files[$i]} | awk ‘{print $2}’ ` done for i in `seq 0 1799` do sum=0 rowValue=0 for j in `seq 0 3` do fileContent=(${f[$j]}) rowValue=`echo ${fileContent[$i]} ` … Read more
It can be done pretty easily using Awk, just do the below to store the contents in a bash array. read -p “Enter object to get properties for: ” objectname all_properties=($(awk -F ‘=’ -v input=”${objectname}” ‘$1 ~ input{flag=1; next} $1 ~ /\[object/{flag=0; next} flag && NF {split($0,arr,”=”); print arr[2] } config.ini)) Now loop the array … Read more
Filter on the line numbers; only match those divisible by 3. awk ‘NR % 3 == 0’ file.txt 0 solved Bash- awk one liner { print every third line of a text file }