oranges,20 Remove Duplicate Lines The-uoption removes duplicate lines from the output. Without this option, duplicate lines are retained. Example: Remove Duplicate Lines sort-u fruits.txt apples,1 bananas,2 ban
Remove Duplicate Lines: Write a Bash script that removes duplicate lines from a text file named "data.txt" and saves the result in a new file named "unique_data.txt". Code: #!/bin/bash # Remove duplicate lines from "temp.txt" and save to "unique_data.txt" sort -u temp.txt > uni...
Combine sort and uniq using a pipe to remove duplicate lines sort random_order.txt | uniq Powered By Variables List all environment variables with set set Powered By Create a shell variable with name=value (no spaces around =) mydata=sales.csv Powered By Create a shell variable from...
uniqis designed to identify and remove adjacent duplicate lines. This means it only compares a line with the one directly before it. If the lines aren’t sorted,uniqmight miss duplicates that appear non-consecutively: $ uniq groceries.txt ...
How to remove duplicate lines from files preserving their order How to remove duplicate lines of a file in Linux without sorting or changing their order (awk one-liner explained). tags: linux - bash - scripts - file - awk - how-to - featured Apr 10, 2019 - 16:00 @ programming How ...
解析：给定数组，数组有重复元素，就返回true，没有返回false，这是典型的用list和for循环的题。思路：...
' .zsh_history # join multiline commands | nl -nrz # add line numbers so we can restore the original order | tac | sort -t';' -u -k2 # sort and remove duplicate commands, keeping the last occurrence | sort # sort on line numbers | cut -d$'\t' -f2- # remove the line ...
Create a temporary associative array. When setting associative array values and a duplicate assignment occurs, bash overwrites the key. This allows us to effectively remove array duplicates.CAVEAT: Requires bash 4+Example Function:remove_array_dups() { # Usage: remove_array_dups "array" declare ...
Fruits=("${Fruits[@]}" "Watermelon") # Push Fruits+=('Watermelon') # Also Push Fruits=( ${Fruits[@]/Ap*/} ) # Remove by regex match unset Fruits[2] # Remove one item Fruits=("${Fruits[@]}") # Duplicate Fruits=("${Fruits[@]}" "${Veggies[@]}") # Concatenate lines=(...
The second and subsequent lines of a multi-line compound command are not tested, and are added to the history regardless of the value of HIST- CONTROL. HISTFILE The name of the file in which command history is saved (see HISTORY below). The default value is ~/.bash_his- tory. If ...