#!/bin/bash
linenum=$(grep -n -w somedata /usr/local/xx/xxx.txt |cut -f1 -d:);
if [ $linenum > 0 ]
then
linestart=$((linenum-1));
linesend=$((linenum+3));
sed -i "$linestart,$linesend d" /usr/local/xx/xxx.txt;
fi
this script works fine from terminal but from php (exec_shell) i have this message ('permission denied'), when i remove 'if then fi' the script work fine,
Hi guys:
I am trying to delete multiple files in a folder with different names. Below is the script that I was trying, but it doesn't work
**************************
#!/bin/ksh
DATE=`date '+20%y%m%d'`
DEL_DIR=<dir where files have to be deleted>
let DATE2=$(($DATE - 2))
let DATE1=$(($DATE... (12 Replies)
I understand this question probably poses some child like stupidity, but I can't get this if statement to work for love or money.
#!/bin/ksh
echo "Input either 1 or 2"
read Num
if ; then
echo "Message 1"
if ; then
echo "Message 2"
else
echo "false"
fi
$ ksh decisions
Input either 1... (6 Replies)
im trying to write an until statement which dont go onto the next stage until the user inputs a certain phrase. It is then stored in an array. Ive come up with this code so far but its not working and i dont know why.
read in1
until
do
echo "Incorrect, try again"
... (2 Replies)
Hello all,
I am trying to write a post-commit hook script using bash script. What I am trying to do here is:
Developers check in their files to a branch. I check the repository and based on the commit I email QA people.
QA verifies and moves the files to a prod branch and email is sent... (1 Reply)
Hi.
With the help of this group I have created a shell script to find the factorial of a number.
OK. Then I got wild.;) I tried to put in a check to make sure the entry is a number.
read num
If )) then
echo "This is not a valid number. Try again."
fi
while (( $var <= $num)) more... (5 Replies)
Hi .I am trying to check the first arguments =-s and the third =-d,but it doesnt work ,any idea why
It gives me if: Missing file name
Thanks
#case -s and files
if( $1 == "-s" && $3 != "-d" ) then
echo "case s"
endif (1 Reply)
#! /bin/ksh
rm -f ./xyz file --- this line is working
// Below any if stmt is not working.
if
then
echo " blah blah "
fi
or I replaced above if with
if
then
echo "dir exists"
fi
This is also not working.
I am new to KSH. So can someone help why if stmt is not... (31 Replies)
Hi all.
I appologise this is my first post, I will gladly have a further look around to see if this has been posted elsewhere, but so far it has not, or it doesnt quite explain in full what I need. If anyone here can help me out, I would really appreciate this. I want to make sure I do this... (1 Reply)
hello guys,
i am having the below piece of code
error
()
{
echo"Press y /n"
read ans
case $ans in
y) main;;
n) exit
esac
}
In the abve code, read statement is not working i.e not waiting for user to enter input.
,i tested exit status its 1.
could anyone help me to do this
... (11 Replies)
Discussion started by: mohanalakshmi
11 Replies
LEARN ABOUT LINUX
error_one_per_line
ERROR(3) Linux Programmer's Manual ERROR(3)NAME
error, error_at_line, error_message_count, error_on_per_line, error_print_progname - glibc error reporting functions
SYNOPSIS
#include <error.h>
void error(int status, int errnum, const char *format, ...);
void error_at_line(int status, int errnum, const char *filename,
unsigned int linenum, const char *format, ...);
extern unsigned int error_message_count;
extern int error_one_per_line;
extern void (* error_print_progname) (void);
DESCRIPTION
error() is a general error-reporting function. It flushes stdout, and then outputs to stderr the program name, a colon and a space, the
message specified by the printf(3)-style format string format, and, if errnum is nonzero, a second colon and a space followed by the string
given by strerror(errnum). Any arguments required for format should follow format in the argument list. The output is terminated by a
newline character.
The program name printed by error() is the value of the global variable program_invocation_name(3). program_invocation_name initially has
the same value as main()'s argv[0]. The value of this variable can be modified to change the output of error().
If status has a nonzero value, then error() calls exit(3) to terminate the program using the given value as the exit status.
The error_at_line() function is exactly the same as error(), except for the addition of the arguments filename and linenum. The output
produced is as for error(), except that after the program name are written: a colon, the value of filename, a colon, and the value of
linenum. The preprocessor values __LINE__ and __FILE__ may be useful when calling error_at_line(), but other values can also be used. For
example, these arguments could refer to a location in an input file.
If the global variable error_one_per_line is set nonzero, a sequence of error_at_line() calls with the same value of filename and linenum
will result in only one message (the first) being output.
The global variable error_message_count counts the number of messages that have been output by error() and error_at_line().
If the global variable error_print_progname is assigned the address of a function (i.e., is not NULL), then that function is called instead
of prefixing the message with the program name and colon. The function should print a suitable string to stderr.
CONFORMING TO
These functions and variables are GNU extensions, and should not be used in programs intended to be portable.
SEE ALSO err(3), errno(3), exit(3), perror(3), program_invocation_name(3), strerror(3)COLOPHON
This page is part of release 3.27 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
GNU 2010-08-29 ERROR(3)
06-20-2016
