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Emacs/Gmacs In-Line Editor Commands
| Ctl-b
| move left one character
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| Ctl-f
| move right one character
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| Esc-b
| move left one word
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| Esc-f
| move right one word
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| Ctl-a
| move to beginning of line
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| Ctl-e
| move to end of line
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| Ctl-h
| delete preceding character
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| Ctl-x
| delete the entire line
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| Ctl-k
| delete from cursor to end of line
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| Ctl-d
| delete current character
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| Esc-d
| delete current word
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| Ctl-w
| delete from cursor to mark
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| Ctl-y
| undo last delete (w/Esc-p)
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| Ctl-p
| get previous command from history file
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| Ctl-n
| get next command from history file
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| Ctl-o
| execute current command line and get the next command line
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| Ctl-rstring
| search backward in history file for command that contains string
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| Ctl-c
| change current character to upper case
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| Esc-c
| change current word to upper case
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| Esc-l
| change current character to lower case
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| Esc-p
| save to buffer from cursor to mark
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| Esc-<SPACE>, Ctl-@
| mark current location
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| Ctl-l
| redisplay current line
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| Ctl-]c
| move cursor forward to character c
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| Ctl-xCtl-x
| interchange the cursor and mark
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| erase
| delete previous character
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| Esc-Ctl-h
| delete previous word
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| Esc-h
| delete previous word
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| Ctl-t
| transpose current and next character (emacs)
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| Ctl-t
| transpose two previous characters (gmacs)
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| Ctl-j
| execute the current line
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| Ctl-m
| execute the current line
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| Esc-<
| get the oldest command line
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| Esc->
| get the previous command line
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| Esc-n
| define numeric parameter n for the next command (command can be Ctl-c, Ctl-d, Ctl-k, Ctl-n, Ctl-p, Ctl-r, Esc-., Ctl-]c, Esc-_, Esc-b, Esc-c, Esc-d, Esc-f, Esc-h, Esc-l, Esc-Ctl-h)
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| Esc-c
| insert value of alias _c (c cannot be b, c, d, f, h, l, or p)
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| Esc-., Esc-_
| insert last word of previous command
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| Esc-Esc
| replace the current word with the filename that matches word*. For unique matches, append a / to directories and " " (space) for files
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| Esc-=
| list the files that match the current word*list the files that match the current word*
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| Ctl-u
| multiply parameter of next command by 4
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| \
| escape the next character
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| Ctl-v
| display the version of the shell
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| Esc-#
| insert a # (comment) at beginning of the current line
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JOB CONTROL
Job control is a process manipulation feature found in the Korn shell. It allows programs to be stopped and restarted, moved between the foreground and background, their processing status to be displayed, and more. To enable job control, the monitor option must be enabled. By default, this is enabled on systems that support the job control feature. When a program is run in the background, a job number and process id are returned.
Job Control Commands
| bg
| put the current stopped job in the background
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| bg %n
| put the stopped job n in the background
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| fg
| move the current background job into the foreground
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| fg %n
| move background job n into the foreground
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| jobs
| display the status of all jobs
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| jobs –l
| display status of all jobs along with their process ids
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| jobs –p
| display the process ids of all jobs
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| kill –l
| list all valid signal names
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| kill [–signal] %n
| send the specified signal to job n (default 9)
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| set –m, set –o monitor
| enable job control
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| stty [–]tostop
| allow/prevent background jobs from generating output
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| wait
| wait for all background jobs to complete
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| wait %n
| wait for background job n to complete
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| Ctl-z
| stop the current job
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Job Name Format
| %n
| job n
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| %+, %%
| current job
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| %–
| previous job
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| %string
| job whose name begins with string
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| %?string
| job that matches part or all of string
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ARITHMETIC
Integer arithmetic is performed with the let and ((...)) commands. All of the operators from the C programming language (except ++, ––, and ?:) are supported by the Korn shell. The format for arithmetic constants is:
number or base#number
where base is a decimal number between 2 and 36 that specifies the arithmetic base. If not specified, the default is base 10. The arithmetic base can also be set with the typeset –i command.
Arithmetic Commands
| let "arithmetic-expression"
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| ((arithmetic-expression))
| evaluate arithmetic expression
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| integer variable
| declare an integer variable
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| integer variable=integer-value
| declare an integer variable and set it to a value
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| integer variable="arithmetic-assignment-expression"
| declare an integer variable and assign it the value of the arithmetic-assignment-expression
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| typeset –in variable[=value]
| declare a base n integer variable, and optionally assign it a value
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