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Full Discussion: Inputting text to a specific line of a file
Top Forums UNIX for Dummies Questions & Answers Inputting text to a specific line of a file Post 302434264 by DeCoTwc on Friday 2nd of July 2010 03:21:03 AM
Old 07-02-2010
Just a crappy shell solution. I don't know if this is what you were looking for. It adds a line before the line that says last


Code:
(03:19:41\[D@DeCoBox15)
[~]$ cat file
first
second
third
fourth
fith
last

(03:19:45\[D@DeCoBox15)
[~]$ type insert
insert is a function
insert ()
{
    tac $1 | while read line; do
        if [[ $line == "last" ]]; then
            echo $line;
            echo "$2";
        else
            echo $line;
        fi;
    done | tac
}

(03:19:48\[D@DeCoBox15)
[~]$ insert file "look ma, new text"
first
second
third
fourth
fith
look ma, new text
last


I just put it in a function so type would auto format it from the one-liner I wrote it as.
 

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LEARN ABOUT SUNOS

has_ic

has_ic(3XCURSES)					  X/Open Curses Library Functions					  has_ic(3XCURSES)

NAME

       has_ic, has_il - determine insert/delete character/line capability

SYNOPSIS

       cc [ flag... ] file... -I /usr/xpg4/include -L /usr/xpg4/lib 
       -R /usr/xpg4/lib -lcurses [ library... ]

       c89 [ flag... ] file... -lcurses [ library... ]

       #include <curses.h>

       bool has_ic(void);

       bool has_il(void);

DESCRIPTION

       The has_ic() function determines whether or not the terminal has  insert/delete character capability.

       The has_il() function determines whether or not the terminal has  insert/delete line capability.

RETURN VALUES

       The has_ic() function returns TRUE if the terminal has insert/delete character capability and FALSE otherwise.

       The has_il() function returns TRUE if the terminal has  insert/delete line capability and FALSE otherwise.

ERRORS

       None.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |Unsafe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       libcurses(3XCURSES), attributes(5), standards(5)

SunOS 5.10							    5 Jun 2002							  has_ic(3XCURSES)
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