From there it should be relatively trivial. Out9: 40.3MiB 0:00:59 Īnd mawk2 took just 59 seconds to extract out a list of row ranges it needs. rate of 1 every 3^5, using rand() not just NR % 243, to place the string db_pd.Clients at a random position in the middle of the existing text, totaling 2.16 mn rows where the regex pattern hits rows = 2160088. | bytes = 83332269969.Īnd randomly selected rows at an avg. Output where some history is stored: cat ~/.Hmm…… what speeds do you need ? i created a synthetic 77.6 GB file with nearly 525 mn rows with plenty of unicode : rows = 524759550. Run this command in the parent directory where you would like to search. or using grep in the following way: git rev-list -all GITPAGERcat xargs git grep searchstring. Run the source command can be used to load any functions file into the current shell script or a command prompt. You can try the following command: git log -patch -coloralways less +/searchingstring. Modify history environment variables, set to a value: export HISTFILESIZE=1000 Otherwise, the overwritten alternative proceeds. You may use also histappend to append history, If the histappend shell option is turned on lines are appended to the history file. The reason is that the history file is overwritten with the HISTSIZE unless using histappend option turned ON. The grep command in Linux is widely used for parsing files and searching for useful data in the outputs of different commands. If the set HISTFILESIZE is determined to be a large value than what HISTSIZE is set, you will not view history larger than your set HISTSIZE. HISTSIZE will determine specifically how many lines will be stored or in other words, written at the end of the session. HISTFILESIZE will only set a maximum history value which is stored to the history file when a session is started. It is possible to achieve this by modifying ~/.bash_profile, the number placeholder with SIZE represent's the number, lines value as example: export HISTFILESIZE=SIZE # Example 1000 You may achieve this through HISTSIZE and HISTFILESIZE environment variables which are located in your ~/.bash_profile file. Note: You may also increase your command history storage size in the length of two variables. HISTFILESIZE Determines how long the file. HISTSIZE Determines how many lines will be written to the history file.
Windows bash grep to search history update#
Then update your terminal session with the command source ~/.zshrc to have your changes take effect immediately inputrc, you can use the syntax: bind '"\e[A": history-search-backward'įor newer MacOS laptops that no longer support bash, you can add the following to your ~/.zshrc file to accomplish the same result: bindkey "\e[A" history-search-backward Just type something (optional), then press up/down arrow key to search through history for commands that begin with what you typed. inputrc to bind the up/down arrow key to history-search-backward and history-search-forward: # Key bindings, up/down arrow searches through history If you like to be super lazy you can bind the up/down arrow keys to perform this search, I have the following in my. By pressing ctrl+ R again (and again) you can cycle through the history. Now start typing your command, this will give the first match.
Pressing ctrl+ R will open the history-search-backward. Migrating an answer to SO from this answer on the Unix and Linux Stack Exchange:
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