Bash start up script - Revision history

Ted: /* ^ git Credentials Switcher */

2021-11-24T00:18:59Z

^ git Credentials Switcher

2021-11-22T20:43:27Z

^ git Credentials Switcher

2021-11-22T20:42:44Z

Adding section on git credentials switching shell code.

2021-11-22T19:33:06Z

[[]] Overview and Purpose

2021-11-22T19:30:39Z

Amending dot bashrc amendments page with links to Mendel Cooper's great Bash shell scripting guide.

2021-09-29T21:51:38Z

2021-09-27T17:14:58Z

updating .bashrc test for larger bookmarking bash amendments file.

2021-08-04T20:50:57Z

formatting correction.

2021-08-04T20:50:23Z

amending explanation of .bashrc start-up changes to enable directory bookmarking script.

2021-08-04T20:39:08Z

Adding bookmarking script with Zephyr project env variables set near end of script.

@@ Line 1,121: / Line 1,121: @@
 == [[#top|^]] git Credentials Switcher ==
-Unsure whether following shell script can be turned into an effective shell alias, but may be work-able as a shell function:
+Unsure whether following shell script can be turned into an effective shell alias, but may be work-able as a shell function.  Posting three script excerpts here, in reality these are small stand-alone shell scripts:
 <pre>
@@ Line 1,150: / Line 1,152: @@
 #     '
 exit 0

@@ Line 1,120: / Line 1,120: @@
 == [[#top|^]] git Credentials Switcher ==
 <pre>
@@ Line 1,153: / Line 1,155: @@
 <!-- comentario -->
 == [[#top|^]] References ==

← Older revision		Revision as of 20:42, 22 November 2021
Line 1,118:		Line 1,118:

	<!-- comment -->		<!-- comment -->
		+
		+	== [[#top\|^]] git Credentials Switcher ==
		+
		+	<pre>
		+	#!/bin/bash
		+
		+	export NN_SSH_DIR=${HOME}/.ssh
		+	export NN_SSH_CONFIG=${NN_SSH_DIR}/config
		+	export NN_ELLIPTIC_KEY_PRIVATE=${NN_SSH_DIR}/id_ed25519
		+	export NN_ELLIPTIC_KEY_PUBLIC=${NN_SSH_DIR}/id_ed25519.pub
		+
		+	## alias gw='\
		+	if [ -e ${NN_SSH_CONFIG} ]; then #\
		+	rm ${NN_SSH_CONFIG} #\
		+	fi
		+	ln -s $NN_SSH_DIR/config--work ${NN_SSH_CONFIG} #\
		+
		+	if [ -e ${NN_ELLIPTIC_KEY_PRIVATE} ]; then #\
		+	rm ${NN_ELLIPTIC_KEY_PRIVATE} #\
		+	fi
		+	ln -s $NN_SSH_DIR/id_ed25519-work ${NN_ELLIPTIC_KEY_PRIVATE} #\
		+
		+	if [ -e ${NN_ELLIPTIC_KEY_PUBLIC} ]; then #\
		+	rm ${NN_ELLIPTIC_KEY_PUBLIC} #\
		+	fi
		+	ln -s $NN_SSH_DIR/id_ed25519-work.pub ${NN_ELLIPTIC_KEY_PUBLIC} #\
		+
		+	echo "Setting git auth to work account . . ."
		+	# '
		+
		+
		+	exit 0
		+	</pre>
		+
		+	<!-- comentario -->
		+

	== [[#top\|^]] References ==		== [[#top\|^]] References ==

@@ Line 1: / Line 1: @@
-== [[]] Overview and Purpose ==
+== [[#top|^]] Overview and Purpose ==
 [https://tldp.org/LDP/abs/html/index.html The Linux Documentation Project] offers several excellent Unix and Linux reference materials.  In particular [https://tldp.org/LDP/abs/html/index.html Advanced Shell Scripting guide by Mendel Cooper] shares some of the more powerful coding and utilities features of Unix and Unix-like systems.  Link to Mendel Cooper's guide here, and link to a sub-topic of shell aliases also here:
@@ Line 9: / Line 9: @@
 Over some years Neela Nurseries site contributor Ted has gathered some handy shell configuration code into a file named `dot-bashrc-amendments.sh`.  Started initially as a script to provide directory or path bookmarking, this open source shell project now includes a few more simple shell configuration pieces to aid in programming and client use git tasks.  The project is hosted at https://github.com/tedhavelka/directory-bookmarker.  As of 2021-11-22 there is code clean up needed here, especially in the function which attempts to set two environment variables used by `ssh-add` and `ssh-agent`, programs who in turn provide git user credentials to remote git account servers.

@@ Line 1: / Line 1: @@
 -11-02
 On most Linux systems with <code>bash</code> installed, a regular user home directory contains a <code>.bashrc</code> start up script with some default configurations.  Whether this is present or not, the following lines of code may / should be added to .bashrc to source the separate directory bookmarking script.  Note if .bashrc already present then the first line of code excerpt 1 should not be added again nor in the middle of .bashrc:
@@ Line 25: / Line 39: @@
 Stash and copy point for recent script versions:
-== 2021-08-04 directory bookmark script ==
+== [[#top|^]] 2021-08-04 directory bookmark script ==
 For convenience of copy and paste, script from home with md5sum <code>b2b6a2d2e6160e88b577bd6b06012bea  dot-bashrc-amendments.sh</code>.  This version adds two Zephyr project related environment variables:

← Older revision		Revision as of 21:51, 29 September 2021
Line 1,101:		Line 1,101:
	</pre>		</pre>

		+	<!-- comment -->
		+
		+	== [[#top\|^]] References ==
		+
		+	* https://superuser.com/questions/319538/aliases-in-subshell-child-process
		+	* https://superuser.com/questions/447487/can-i-export-an-alias-to-the-shell-that-invoked-a-script
		+	* https://unix.stackexchange.com/questions/17815/running-script-with-and-with-source

	<!-- comment -->		<!-- comment -->

@@ Line 7: / Line 7: @@
 #!/bin/bash
 if [ -e $HOME/Desktop/dot-bashrc-amendments.sh ]; then
      . $HOME/Desktop/dot-bashrc-amendments.sh
 fi