
Revisions .bashrc Profile Configuration For Colors And Git Branch
Git is one of the most popular Source Control Management (SCM) software packages to provide revision control. Subversion (aka SVN) and Mercurial are other popular systems. These systems organize source code in branches and revisions that can be named by means of tagging. Branches can be used to allow you to work on different versions of the software concurrently. You probably want to use. Git config -global color.ui auto The auto part says that git will only try and use color on terminals that support it, and you will not get ANSI sequences if you redirect output of git commands to a file for example. Setting it to true is same as auto, and this is also the default since Git 1.8.4. The color.ui is a meta configuration that includes all the various.
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Contents.PromptsBash has four prompts that can be customized:. PS1 is the primary prompt which is displayed before each command, thus it is the one most people customize. PS2 is the secondary prompt displayed when a command needs more input (e.g. A multi-line command).
PS3 is not very commonly used. It is the prompt displayed for Bash's select built-in which displays interactive menus.
Unlike the other prompts, it does not expand. Usually you would customize it in the script where the select is used rather than in your.bashrc. PS4 is also not commonly used. It is displayed when debugging bash scripts to indicate levels of indirection. The first character is repeated to indicate deeper levels.All of the prompts are customized by setting the corresponding variable to the desired string (usually in /.bashrc), for examplePS2=' 'TechniquesWhile one can simply set their prompt to a plain string, there are a variety of techniques for making the prompt more dynamic and useful.Bash escape sequencesWhen printing the prompt string, Bash looks for certain backslash-escaped characters and will expand them into special strings. For example, u is expanded into the current username and A is expanded to the current time. So a PS1 of 'A u $ ' would be printed like 17:35 username $.Check the 'PROMPTING' section of the Bash man page for a complete list of escape sequences.Terminfo escape sequencesAside from the escape characters recognized by Bash, most terminals recognize special escape sequences that affect the terminal itself rather than printing characters.
For example they might change the color of subsequent printed characters, move the cursor to an arbitrary location, or clear the screen. These escape sequences can be somewhat illegible and can vary from terminal to terminal, so they are documented in the terminfo database. To see what capabilities your terminal supports, run$ infocmpThe capability names (the part before the =) can be looked up in for a description of what they do. For example, setaf sets the foreground color of whatever text is printed after it. To get the escape code for a capability, you can use the tput command.
For example$ tput setaf 2prints the escape sequence to set the foreground color to green. Note: You can use terminfo/ANSI escape sequences inside substituted functions but not Bash escapes.
In particular won't work for surrounding non-printable characters. Instead you can use the octal escapes 001 and 002 (e.g. Using printf or echo -e). PROMPTCOMMANDIf the PROMPTCOMMAND variable is set, it will be evaluated right before PS1 is displayed.
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This can be used to achieve quite powerful effects. For example it can reassign PS1 based on some condition, or perform some operation on your Bash history every time you run a command.
Warning: PROMPTCOMMAND generally should not be used to print characters directly to the prompt. Characters printed outside of PS1 are not counted by Bash, which will cause it to incorrectly place the cursor and clear characters. Either use PROMPTCOMMAND to set PS1 or look at. Escapes between command input and outputYou can affect your input text in Bash by not resetting the text properties at the end of your PS1.
For example, inserting tput blink at the end of your PS1 will make your typed commands blink. However this effect will also continue through the command's output since the text properties are not reset when you hit Enter.In order to insert escape sequences after you type a command but before the output is displayed, you can trap Bash's DEBUG signal, which is sent right before each command is executed:$ trap 'tput sgr0' DEBUGCustomizing root promptsTo ensure that you know when you are running as root, you can customize your root prompt to make it clearly stand out (perhaps blinking red?). This is done by customizing the Bash prompt as usual but in root's home directory, /root. Start off by copying the skeleton files /etc/skel/.bashprofile and /etc/skel/.bashrc to /root, then edit /root/.bashrc as desired.Examples Colors.
Left prompt right promptThis creates a right-justified variable-sized field%.s and sets its size to the current number of columns of the terminal $COLUMNS.Arbitrary positioningThe cup capability moves the cursor to a specific position on the screen, for example tput cup 20 5 moves the cursor to line 20, column 5 (where 0 0 is the top left corner). Cuu, cud, cuf, and cub (up, down, forward, back) move the cursor relative to its current position. For example tput cuf 10 moves the cursor 10 characters to the right. You can use the LINES and COLUMNS variables in the arguments to move the cursor relative to the bottom and right edges.
For example, to move 10 lines and 5 columns away from the bottom right corner:$ tput cup $((LINES - 11)) $((COLUMNS - 6))Customizing the terminal window titleThe terminal window title can be customized in much the same way as the prompt: by printing escape sequences in the shell. Thus it is common for users to include window title customizations in their prompt. Although this is technically a feature of xterm, many modern terminals support it. The escape sequence to use is ESC2; new title BEL where ESC and BEL are the escape and bell characters.
Using, changing the title in your prompt looks likePS1='e2; new titleaprompt 'Of course your window title string can include output from or variables such as $PWD, so that the title changes with each command.See also. Community examples and screenshots in the Forum thread: (only accessible if logged in). See also AUR.
| # generated by Git for Windows |
| test -f ~/.profile &&.~/.profile |
| test -f ~/.bashrc &&.~/.bashrc |
| #from http://stackoverflow.com/questions/33220492/ps1-bash-command-substitution-not-working-on-windows-10 |
| # Reset |
| Off='[e[0m]'# Text Reset |
| # Regular Colors |
| Black='[e[0;30m]'# Black |
| Red='[e[0;31m]'# Red |
| Green='[e[0;32m]'# Green |
| Yellow='[e[0;33m]'# Yellow |
| Blue='[e[0;34m]'# Blue |
| Purple='[e[0;35m]'# Purple |
| Cyan='[e[0;36m]'# Cyan |
| White='[e[0;37m]'# White |
| # Bold |
| BoldBlack='[e[1;30m]'# Black |
| BoldRed='[e[1;31m]'# Red |
| BoldGreen='[e[1;32m]'# Green |
| BoldYellow='[e[1;33m]'# Yellow |
| BoldBlue='[e[1;34m]'# Blue |
| BoldPurple='[e[1;35m]'# Purple |
| BoldCyan='[e[1;36m]'# Cyan |
| BoldWhite='[e[1;37m]'# White |
| # Various variables you might want for your PS1 prompt instead |
| UserName='u' |
| HostName='h' |
| Time12h='T' |
| Time12a='@' |
| PathShort='W' |
| PathFull='w' |
| NewLine='n' |
| Jobs='j' |
| NewLine=$'n' |
| # from https://github.com/mcloide/git-color-scheme |
| if [ -x /usr/bin/tput ] && tput setaf 1 >&/dev/null;then |
| c_reset=`tput sgr0` |
| c_git_clean=`tput setaf 2; tput bold` |
| c_git_dirty=`tput setaf 5; tput bold` |
| else |
| c_reset= |
| c_git_clean= |
| c_git_dirty= |
| fi |
| git_prompt () |
| { |
| if! git rev-parse --git-dir > /dev/null 2>&1;then |
| return 0 |
| fi |
| git_branch=$(git branch 2>/dev/null sed -n '/^*/s/^* //p') |
| if git diff --quiet 2>/dev/null >&2;then |
| git_color=${c_git_clean} |
| else |
| git_color=${c_git_dirty} |
| fi |
| echo' [$git_color$git_branch${c_reset}]' |
| } |
| export PS1='n${Yellow}${UserName}@${HostName}${BoldCyan}${PathFull}${Off}''$(git_prompt)''${NewLine}${BoldYellow}λ ${Off}' |
| [alias] |
| lg= log --graph --pretty=format:'%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr) %C(bold blue)<%an>%Creset' --abbrev-commit --date=relative |
| ca= commit -a |
| ci= commit |
| st= status |
| co= checkout |
| br= branch |
| [credential] |
| helper=manager |
| [push] |
| default=simple |
| [user] |
| name=JohnAzariah |
| email=john.azariah@gmail.com |
| [core] |
| autocrlf=true |
| excludesfile=C:UsersjohnazDocumentsgitignore_global.txt |
| editor='C:ProgramFiles(x86)MicrosoftVSCodeCode.exe' |
| [color] |
| ui=auto |
| [color 'branch'] |
| current=yellowreverse |
| local=yellow |
| remote=green |
| [color 'diff'] |
| meta=yellowbold |
| frag=magentabold |
| old=redbold |
| new=greenbold |
| [color 'status'] |
| added=yellow |
| changed=green |
| untracked=cyan |