i made up a library file called common.lib so as to reuse the same code without typing it again. here is the code. its pretty basic .
i have another shell script that uses the function 'compare' from the library file . here is the code.
i know i am going wrong somewhere because when i try to execute the shell script, the cursor just waits at the console without spitting out any output. after a while i have to terminate the process using ctrl+c . please tell me where i am going wrong.
Simple shell script :
date
test_fn()
{
echo "function within test shell script "
}
on the shell prompt I run
> . test
Then I invoke the function on the command line as below :
test_fn()
It echos the line
function within test shell script
and works as expected.
... (5 Replies)
i've been told that c shell does not support functions/subroutines is that true?
if not can somebody give me the basic syntax for creating a function. it would very much appreciated!
thanks in advance (1 Reply)
Hi All,
I have a very long code called myfunction -> "if ..... else if .... else if ..end if "
And i have several other codes which need to call the "myfunction" code.
How can C-shell call a function "B]myfunction" ? Can any body give me an example ?? (1 Reply)
Hi,
I have a query ..
i have 2 scripts say 1.sh and 2.sh
1.sh contains many functions written using shell scripts.
2.sh is a script which needs to call the functions definded in 1.sh
function calls are with arguments.
Can some one tell me how to call the functions from 2.sh?
Thanks in... (6 Replies)
hi friends,
I am working with shell commands and all these works properly.
Then i created a small function which includes these commands.
Now the problem arises. When the commands are run by calling this fuction.it
shows error.
Why i am not able to run the unix command inside a function.... (1 Reply)
Hello All,
I am trying to call a function from the calling main program from a dlopened library function, below is the entire code, when I execute it it crashes with sigill. Can you guys help me out I guess I am missing out on the linker flag or something here. besides I am new to AIX and... (1 Reply)
so i have a very big script that has the following format:
functionA () {
....
...
....
}
Results=$(functionA)
the code inside of functionA is very huge. so by the time the script gets to the "Results=" part, several seconds have already passed. the script is about 15MB in size.... (4 Replies)
Hello,
I have a requirement to apply hashing algorithm on flat file on one or more columns dynamically based on header
sample input file
ID|NAME|AGE|GENDER
10|ABC|30|M
20|DEF|20|F
say if i want multiple columns based on the header example id,name or id,age or name,gender and hash and... (13 Replies)
I want to find c function definition with pattern with shell script by checking condition for each line:
data_type
functionname(param_list){
....
}
I knew cscope or ctag is usable for this task, but if there any ways to do without using them.
I am thinking of checking line condition... (3 Replies)
Discussion started by: cmdcmd
3 Replies
LEARN ABOUT V7
diff
DIFF(1) General Commands Manual DIFF(1)NAME
diff - differential file comparator
SYNOPSIS
diff [ -efbh ] file1 file2
DESCRIPTION
Diff tells what lines must be changed in two files to bring them into agreement. If file1 (file2) is `-', the standard input is used. If
file1 (file2) is a directory, then a file in that directory whose file-name is the same as the file-name of file2 (file1) is used. The
normal output contains lines of these forms:
n1 a n3,n4
n1,n2 d n3
n1,n2 c n3,n4
These lines resemble ed commands to convert file1 into file2. The numbers after the letters pertain to file2. In fact, by exchanging `a'
for `d' and reading backward one may ascertain equally how to convert file2 into file1. As in ed, identical pairs where n1 = n2 or n3 = n4
are abbreviated as a single number.
Following each of these lines come all the lines that are affected in the first file flagged by `<', then all the lines that are affected
in the second file flagged by `>'.
The -b option causes trailing blanks (spaces and tabs) to be ignored and other strings of blanks to compare equal.
The -e option produces a script of a, c and d commands for the editor ed, which will recreate file2 from file1. The -f option produces a
similar script, not useful with ed, in the opposite order. In connection with -e, the following shell program may help maintain multiple
versions of a file. Only an ancestral file ($1) and a chain of version-to-version ed scripts ($2,$3,...) made by diff need be on hand. A
`latest version' appears on the standard output.
(shift; cat $*; echo '1,$p') | ed - $1
Except in rare circumstances, diff finds a smallest sufficient set of file differences.
Option -h does a fast, half-hearted job. It works only when changed stretches are short and well separated, but does work on files of
unlimited length. Options -e and -f are unavailable with -h.
FILES
/tmp/d?????
/usr/lib/diffh for -h
SEE ALSO cmp(1), comm(1), ed(1)DIAGNOSTICS
Exit status is 0 for no differences, 1 for some, 2 for trouble.
BUGS
Editing scripts produced under the -e or -f option are naive about creating lines consisting of a single `.'.
DIFF(1)