Vim - Revision history

Benrwong: /* Substitution */ added info about how to add a ^M carriage return call

2018-10-15T20:23:37Z

Substitution: added info about how to add a ^M carriage return call

← Older revision		Revision as of 20:23, 15 October 2018
Line 52:		Line 52:
	I issue vim command:		I issue vim command:
	:113s/ /^M/g		:113s/ /^M/g
	This looks at line 113 and searches for instances of a single whitespace and replaces it with '^M' which translates to carriage return. With the /g option, it will do this to all the instances of whitespace on line 13. So my end product is:		This looks at line 113 and searches for instances of a single whitespace and replaces it with '^M' which translates to carriage return (I can insert a ^M into the vim cli by pressing Ctrl+v and pressing enter). With the /g option, it will do this to all the instances of whitespace on line 13. So my end product is:

	113 openmpi		113 openmpi

Benrwong: /* Substitution */ added entry regarding substitution

2018-10-09T22:14:44Z

Substitution: added entry regarding substitution

← Older revision		Revision as of 22:14, 9 October 2018
Line 59:		Line 59:

	This is more along the lines of what I wanted but Ansible is not happy with this. It needs spacing and a dash '-' before each package name. Next I issue the following vim command:		This is more along the lines of what I wanted but Ansible is not happy with this. It needs spacing and a dash '-' before each package name. Next I issue the following vim command:
	:113,115/^/ - /		:113,115/^/ - /

	113 - openmpi		113 - openmpi
	114 - mpich-3.2		114 - mpich-3.2

Benrwong: /* Substitution */

2018-10-09T22:14:12Z

Substitution

← Older revision		Revision as of 22:14, 9 October 2018
Line 38:		Line 38:

	While vim is in an open file, use command ':set number' to see the line numbers of a text file.		While vim is in an open file, use command ':set number' to see the line numbers of a text file.

			The pattern of substitution is:

			:s/<search for this pattern>/<replace with this one>

			Search for pattern and replace it globally:
			:s/<search for this pattern>/<replace with this one>/g

			Example: Spacing a list of packages appropriately for ansible. Ansible has very strict spacing requirements. On line 113 of my playbook, I need the packages names to each have a their own line and a dash in front of them. Due to ansible spacing requirements, they must be spaced six spaces away from the left edge the window. I currently have the following string on line 113:

			openmpi mpich-3.2 mpich-3.2-devel

			I issue vim command:
			:113s/ /^M/g
			This looks at line 113 and searches for instances of a single whitespace and replaces it with '^M' which translates to carriage return. With the /g option, it will do this to all the instances of whitespace on line 13. So my end product is:

			113 openmpi
			114 mpich-3.2
			115 mpich-3.2-devel

			This is more along the lines of what I wanted but Ansible is not happy with this. It needs spacing and a dash '-' before each package name. Next I issue the following vim command:
			:113,115/^/ - /

			113 - openmpi
			114 - mpich-3.2
			115 - mpich-3.2-devel

			At last, I've spaced and dashed my package names appropriately. Ansible should be satisified with this.

	[[Category:Sysadmin]]		[[Category:Sysadmin]]

Benrwong at 21:51, 9 October 2018

2018-10-09T21:51:41Z

← Older revision		Revision as of 21:51, 9 October 2018
Line 34:		Line 34:
	Visual mode in vim allows you to highlight characters or lines. Once your desired string has been highlighted, you can press 'y' to copy the highlighted string. <br />		Visual mode in vim allows you to highlight characters or lines. Once your desired string has been highlighted, you can press 'y' to copy the highlighted string. <br />
	Use 'p' to paste the previously copied string.		Use 'p' to paste the previously copied string.

			==Substitution==

			While vim is in an open file, use command ':set number' to see the line numbers of a text file.

	[[Category:Sysadmin]]		[[Category:Sysadmin]]

Benrwong at 21:41, 28 June 2016

2016-06-28T21:41:07Z

← Older revision		Revision as of 21:41, 28 June 2016
Line 34:		Line 34:
	Visual mode in vim allows you to highlight characters or lines. Once your desired string has been highlighted, you can press 'y' to copy the highlighted string. <br />		Visual mode in vim allows you to highlight characters or lines. Once your desired string has been highlighted, you can press 'y' to copy the highlighted string. <br />
	Use 'p' to paste the previously copied string.		Use 'p' to paste the previously copied string.

			[[Category:Sysadmin]]

Benrwong: Created page based on "VIM TRICKS" from the lab manual. Included a bunch of other beginner vim tips to help users start using it

2016-06-28T21:15:56Z

Created page based on "VIM TRICKS" from the lab manual. Included a bunch of other beginner vim tips to help users start using it

New page

=Introduction=
Start vim by editing a single file with the command:
vim file
If you input a nonexisting file name, it will start creating a new file.
vim newfile

vim has two modes: edit mode and insertion mode. vim begins in edit mode which does not allow you to type text into the file. <br />
Only in insertion mode can you insert text with the keyboard. You can enter insertion mode by pressing 'i'.
While in insertion mode, you can press 'Esc' to return to edit mode.

=Edit Mode Commands=
x : deletes character that is under cursor
dw: delete from cursor to next word
dd: delete entire line that cursor is on
p : paste previously deleted material
wq or x : save and quit
w : save
w filename: save as "filename"
q!: quit without saving
v: enters Visual Mode

To comment out multiple lines at once:
With the cursor at the first line you want to comment out type:
ctrl+v
Arrow down to last line you want commented out. Then type:
shift+i
#
esc
enter
To replace every occurrence of a word with another word (for example replace the word ‘foo’ with the word ‘bar’) type:
:%s/foo/bar/g

==Visual Mode==
Visual mode in vim allows you to highlight characters or lines. Once your desired string has been highlighted, you can press 'y' to copy the highlighted string. <br />
Use 'p' to paste the previously copied string.