I put
30 2 * * * /usr/bin/tar cvf /dev/rct0 /u/csa/*
in my crontab file (SCO5) but I want to be absolutely sure that the backup job finishes successfully. I know that whenever cron cannot execute a command sends an e-mail to root with the error code and/or an explanation of the problem.
... (6 Replies)
eg: If I execute an example tail statement to put rows from one file to another, it truncates some of the data.
/carrier>wc -l IntIndA.txt
1918 IntIndA.txt
/carrier>tail -1918 IntIndA.txt > test
/carrier>wc -l test
132 test
The tail command should copy 1918 rows to test file instead of... (4 Replies)
Hi,
I am creating a pipe in a directory $HOME/pipes. The pipename should be
L${PROGNAME}. Whenever i embed these lines in shell script, i get an error
mkfifo: No such file or directory.
I am creating a pipe with the key word
mkfifo $HOME/pipes/L${PROGNAME}.
Please help me how to get... (5 Replies)
Hi everyone,
I would like to know how to compile and run lex programs on solaris 10.
the conventional way is
$ lex <name.l>
$ cc lex.yy.c -ll
$ ./a.out
but while trying to execute the 2nd command :i get a reference saying that the command is old or that main is not supported...
Hence... (1 Reply)
Following is d code snipet
#!/bin/ksh
retVal=`sqlplus -s user/passwd\@oracle_sid <<EOF
SET SERVEROUTPUT ON SIZE 100000
DECLARE
STATUS_VALUE VARCHAR2(1);
BEGIN
SELECT temp1 INTO STATUS_VALUE FROM sai;
DBMS_OUTPUT.PUT_LINE(STATUS_VALUE);
END;
/
exit;
EOF`
echo "Return Value... (2 Replies)
I have downloaded the Putty SSH configuration. I have entered my Host name as illinois.engr.sjsu.edu and i am trying to save that. But i am unable to save.
Also i opened the session and entered my log in name
But it says using keyboard interactive authentication.I am not able to get into $
... (2 Replies)
Hi,
These are the text file I have
//input1.txt//
cd dir1/dir2/pg1.txt
cd dir3/dir4/pg2.txt
cd dir88/dir5/pg4.txt
cd dir7/dir6/pg5.txt
cd dir8/dir9/pg7.txt
And each text file has some text.
Now I have to write a shell script which reads input1.txt and changes the directory as shown... (1 Reply)
Discussion started by: bhavanabahety
1 Replies
LEARN ABOUT BSD
unifdef
UNIFDEF(1) General Commands Manual UNIFDEF(1)NAME
unifdef - remove ifdef'ed lines
SYNOPSIS
unifdef [ -t -l -c -Dsym -Usym -idsym -iusym ] ... [ file ]
DESCRIPTION
Unifdef is useful for removing ifdef'ed lines from a file while otherwise leaving the file alone. Unifdef is like a stripped-down C pre-
processor: it is smart enough to deal with the nested ifdefs, comments, single and double quotes of C syntax so that it can do its job, but
it doesn't do any including or interpretation of macros. Neither does it strip out comments, though it recognizes and ignores them. You
specify which symbols you want defined -Dsym or undefined -Usym and the lines inside those ifdefs will be copied to the output or removed
as appropriate. The ifdef, ifndef, else, and endif lines associated with sym will also be removed. Ifdefs involving symbols you don't
specify are untouched and copied out along with their associated ifdef, else, and endif lines. If an ifdef X occurs nested inside another
ifdef X, then the inside ifdef is treated as if it were an unrecognized symbol. If the same symbol appears in more than one argument, only
the first occurrence is significant.
The -l option causes unifdef to replace removed lines with blank lines instead of deleting them.
If you use ifdefs to delimit non-C lines, such as comments or code which is under construction, then you must tell unifdef which symbols
are used for that purpose so that it won't try to parse for quotes and comments in those ifdef'ed lines. You specify that you want the
lines inside certain ifdefs to be ignored but copied out with -idsym and -iusym similar to -Dsym and -Usym above.
If you want to use unifdef for plain text (not C code), use the -t option. This makes unifdef refrain from attempting to recognize com-
ments and single and double quotes.
Unifdef copies its output to stdout and will take its input from stdin if no file argument is given. If the -c argument is specified, then
the operation of unifdef is complemented, i.e. the lines that would have been removed or blanked are retained and vice versa.
SEE ALSO diff(1)DIAGNOSTICS
Premature EOF, inappropriate else or endif.
Exit status is 0 if output is exact copy of input, 1 if not, 2 if trouble.
BUGS
Does not know how to deal with cpp consructs such as
#if defined(X) || defined(Y)
AUTHOR
Dave Yost
4.3 Berkeley Distribution April 29, 1985 UNIFDEF(1)