Re: [9fans] Revised sam cheat sheat

[Sean Hinchee <henesy.dev@gmail.com>]

This is awesome, thank you

Cheers,
Sean

On Mon, Aug 30, 2021 at 10:53 PM <revcomninos@gmail.com> wrote:
>
> The last cheat sheet I posted was in need of revision and reordering. This one is better than the last--I hope.
>
>
> CHEAT SHEET OF SAM COMMANDS
>
> x cmd - set dot and run command on each matching line
>
> . -- apply command to dot
>
> , -- apply command to whole document
>
>
> < replace dot with std input of command
>
> ! run the unix command
> > send dot to std input of command
>
>
> 0<date -- insert date
>
> >spell -- check spelling
> >wc -l -- count just the lines
> >wc -- do a line, word and character count
>
>
> |tr a-z A-Z -- change case
>
> ,x/".+"/ y/"/ | tr [:lower:] [:upper:]
>
> OR
>
> ,x/".+"/ y/"/ | tr a-z A-Z
>
> -- to capitalise all letters inside quotes
>
>
> s/.*/*&*/ -- enclose phrase in asterisks
>
>
> |fold -s -- break up/format long lines
>
> |fmt -- idem
>
> |sort -- sort the file
>
> |uniq -- delete juxtaposed duplicate lines
>
> |awk '!seen[$0]++' -- delete non-juxtaposed duplicate lines
>
> ,x/\n+/a/\n/ -- finds every occurrence of 1 or more (+) newlines (\n) and appends a new line.
>
>
> /vi/ or +/vi/ -- search forward
>
> 0/regex/ -- search from beg. of file forwards
>
> 0/regex/+-p -- search for a string and select the whole line that contains it
>
> /vi/+- m 0 selects and moves the next line containing "vi" to the top of the file
>
> /vi/+- t 0 selects and copies the next line with "vi" to the top of the file
>
>
> $/regex/ -- search from end of the file backwards
>
>
> Search for a string, and then go from search results in sam window to document:
>
> ,x g/hello/{
>
> p
>
>
> }
>
>
> 0,$ t "peter.c" 0 -- copy contents of one to another
>
>
> , and ; selects whole document
>
> , equivalent to 0,$
>
> 0;5 and 0,5 - selects 1st five lines
>
>
> -/^/+#10 -- go to 10th column of current line
>
>
> B < echo *.org -- One can load multiple files by using <
>
> B < grep -l vi * will load only those files that contain the string "vi"
>
> D is the complement of B. It eradicates the file from sam's memory but does not delete the file from disk! Without a name argument removes current file
>
> e replaces current file with one specified
>
> f changes the filename
>
> f <nl? -- set the current filename to null
>
> n gives a list of read and loaded files
>
>
> {} Braces group commands
>
> [ˆn] any char but n
>
> [nm] n or m
>
>
> w writes the whole file, or parts of a file to disk
>
> < cat /home/red/bin/songs -- insert contents of a file
>
> r /home/red/bin/songs -- idem
>
> r replaces dot in the current file with the contents of the file specified
>
>
> < /home/red/bin/songs -- insert contents of a script
>
> > /home/red/bin/pass google -- output contents of script to sam window
>
>
> < echo "Hello world" -- insert ascii code at the current position
>
>
> x/^/a/ / -- indent the selected text by 1 tab. x means apply to all lines in the selection.
>
>
> sam terminal information
>
> -----------------------
>
> . indicates the current file
>
> + the file has a window open
>
> - the file has been read by sam
>
> * the file is open in more than one instance
>
> ' the loaded file differs from the file on disk
>
>
> /.+\n/ -- finds lines with text
>
> /.*\n/ -- matches single whole lines
>
>
> 0/Ben/,/Son/ -- find a range of text
>
> .,/regexp/ -- selects text FROM dot to the regex
>
> ./regexp// -- selects the second occurrence of a regex
>
> ./regexp// -- selects the third occurrence of a regex
>
> /vi/+/vi/ -- search for the second occurrence of "vi" following dot
>
>
> p -- prints contents of dot in sam terminal
>
> = -- prints current value of dot in sam terminal
>
>
> ,t "junk" 0 -- copy current file to start of file "junk"
>
>
> Perform conditional ACTIONS on lines:
>
> g/regexp/ command -- g = if. If dot contains regexp, run command
>
> g/test/d
>
> ,x g/vi/p -- if a line has "vi" print the line in sam window
>
> v/regexp/ command -- If dot does not contain, run a command
>
> ,x/.*\n/ g/ed/ v/red/ p -- find lines with ed but not red
>
> ,x/".+"/ y/"/ -- search for text in quotes but do not show lines with "y"
>
> ,x/".+"/ x/"/ -- search for text between quotes and only show the quotes
>
> ,x /.*\n/ g/vi/ p - break file into lines, if lines contain "vi, print
>
>
> ,x/ +$/d -- delete empty whitespace at end of every line
>
> ,x/'+$/i/ --color-auto/ -- insert the phrase "--color-auto" into every line that ends in 1 or more '
>
>
> .x/Peter/d -- search dot for 'Peter' and delete 'Peter'
>
> ,x/\\v|\\c|\\s1|\\q1/d -- multiple deletions
>
> ,x/\*/d -- delete all asterisks
>
> ,x/^ /d -- delete the indents
>
> ,x/^ +/d -- delete all blank spaces at beginning of lines
>
> ,x/^$\n/d -- delete all blank lines
>
> ,x/\n\n\n+/c/\n -- change multiple blank lines into 1 blank line
>
>
> ,x/[0-9]/d -- delete lines with numbers
>
>
> ,x/^http.[^,]*?/d -- search for "http...," and delete
>
>
> C-i -- create a tab stop of 8 spaces
>
> ,x/^/a/ / -- indents text with a tab stop.
>
> x/^ /d -- remove 1 tab of indent from selection
>
>
> ,x/[‘‘’’“”‘’]/c/" -- change all smart quotes into straight ones
>
> ,x/".+"/ x/"/ c/'/ -- change double quotes (that surround one or more characters) to single quotes
>
> ,x/good/ c/bad/ -- change "good" to "bad" on every line
>
> ,x/teh/c/the/
>
> ,x/Emacs/x/E/c/e/ - change all the capital "E"s in "Emacs" to lower case "e"s
>
>
> X -- is an iterator that works on files not lines
>
> X D -- remove out all up to date files
>
> X/regexp/ command -- Run command on files whose menu line matches
>
> X/questions/D -- close file called "questions"
>
> X/\.sam$/,x/the/+-p -- search multiple files for text and print the results
>
> X/.*/,x/<cr>/d -- strip <cr> from all files
>
> X ,x/(.+\n)+/ g/account/+-p -- look through every file, and every line, and if any line contains "account" print it out in sam window
>
>
> s/.*/& Hello/ -- add " Hello" to the end of line
>
> s/good/bad/
>
>
> The y command *excludes from consideration* in the seach that follows.
>
>
> ,y/ben/ x/(.+\n)+/g/Directory details/p
>
>
> Y/regexp/ command -- Exclude the file named by "regex" from consideration.
>
>
> .x g/fred/ v/........./ c/jim/ -- Look through dot. If dot contains "fred" change it to "jim" provided it is not "fred....."
>
>
> ,x[a-zA-Z]+/{
>
> g/fred/ v/...../ c/jim/
>
> g/jim/ v/..../ c/fred/
>
> }
>
>
> In the above command braces {} allow for multiple commands. The command says: search every line that contains 1 or more letters, if the line contains "fred" change it to "jim" and if "jim" change it to fred, provided "fred" is not "fred." and "jim" not "jim."
>
>
> g - "if"
>
> v" - "if not, unless the regex is"
>
>
> ,| ssam -f your_script -- apply a sam script
>
>
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