Hi,
If, in a text file a string is expected at a certain fixed position(for eg at position 5 or from 5-10 on every line)
how to check whether data is present on that position or not?
Thnx in advance (6 Replies)
Hello All,
I have written shell script whcih at the max 3 parameters.
When only one commandline argument and other two command line arguments are passed as empty string like
eg : archive ' ' ' '
Then i need to check whether the commandline... (12 Replies)
hi
I m executing a shell script in which records are to be fetched from a table. If the sql that is running empty result set it is displaying "table null is empty !". I dont want this msg on the standard output. COuld you please help me in this regard (3 Replies)
I have an input file having 7 fields delimited by ,
eg :
1,ABC,hg,1,2,34,3
2,hj,YU,2,3,4,
3,JU,kl,4,5,7,
4,JK,KJ,3,56,4,5
The seventh field here in some lines is empty, whereas the other lines there is a value.
How do I insert string NULL at this location (7th loc) for these lines where... (8 Replies)
I am reading from a file and executing the jobs with/without parameters as the job requires.
File
job1 R
job2
job3 Y 123
if
then
<job>.ksh
else
<job>.ksh $params
fi
This works fine if the line read from the file has parameters
it executes like job1.ksh R
But for... (2 Replies)
Hello
So i have that script collection, in which i have a single script to create a configuration file.
In there, i have multiple occourences of something like this:
prj_title=$(tui-read "What is the TITLE? ($prj_name):")
] && prj_title="${prj_name/_/ }"
They all work as expected, if... (5 Replies)
Hi Team,
I have a file abc.dat which is a empty file. But it has null record in first line. I need to identify this unique file and handle it separately.
scenario 1:
abc/dw> wc abc.dat
1 0 1 abc.dat
abc/dw> cat abc.dat
abc/dw>
scenario 2:
abc/dw> wc pqr.dat
0 0 0 pqr.dat... (3 Replies)
I am working an some if then statements for a script.
I want to be able to check for alpha characters or empty out put then exit out.
if ]];
echo "Serial Number Invaild"
then exit 3;
How do I account if the output is empty or null in this in this statement.
Many thanks (6 Replies)
Discussion started by: andysensible
6 Replies
LEARN ABOUT V7
string
STRING(3) Library Functions Manual STRING(3)NAME
strcat, strncat, strcmp, strncmp, strcpy, strncpy, strlen, index, rindex - string operations
SYNOPSIS
char *strcat(s1, s2)
char *s1, *s2;
char *strncat(s1, s2, n)
char *s1, *s2;
strcmp(s1, s2)
char *s1, *s2;
strncmp(s1, s2, n)
char *s1, *s2;
char *strcpy(s1, s2)
char *s1, *s2;
char *strncpy(s1, s2, n)
char *s1, *s2;
strlen(s)
char *s;
char *index(s, c)
char *s, c;
char *rindex(s, c)
char *s;
DESCRIPTION
These functions operate on null-terminated strings. They do not check for overflow of any receiving string.
Strcat appends a copy of string s2 to the end of string s1. Strncat copies at most n characters. Both return a pointer to the null-termi-
nated result.
Strcmp compares its arguments and returns an integer greater than, equal to, or less than 0, according as s1 is lexicographically greater
than, equal to, or less than s2. Strncmp makes the same comparison but looks at at most n characters.
Strcpy copies string s2 to s1, stopping after the null character has been moved. Strncpy copies exactly n characters, truncating or null-
padding s2; the target may not be null-terminated if the length of s2 is n or more. Both return s1.
Strlen returns the number of non-null characters in s.
Index (rindex) returns a pointer to the first (last) occurrence of character c in string s, or zero if c does not occur in the string.
BUGS
Strcmp uses native character comparison, which is signed on PDP11's, unsigned on other machines.
STRING(3)