Execute the below BASH shell script and take three output files generated, output1.log, output2.log and output3.log.
Note: Because the script needs to iterate through the whole log file at least two times, execution can be much slower when you use a large file. Try convert it into PERL then.
I would like to do the following in bash shell.
file a
a:1
b:2
c:3
file b
a:work:apple
b:baby:banana
c:candy:cat
d:desk:dog
I would like to match field 1 in file a to file b, if there's a match I would like
to append field 2 in file a to field 3 in file b.
Thank you. (8 Replies)
Hi All,
I have an input below. If the term in the 1st column is equal, print the last row which 1st column is equal.In the below example, it's " 0001 k= 27 " and " 0004 k= 6 " (depicted in bold). Those terms in 1st column which are not repetitive are to be printed as well. Can any body help me... (9 Replies)
Hello,
I have two files that have the date field as a common. I request your help with some script that divide the value of the file1 by the value in the file2 only when the field date are the same between both files and create a new text file.
This is a sample of the files
file1... (1 Reply)
Hi,
A text file contains lines of fields seperated by some delimiter; space for example; some lines but not all will have in the second field a value like an inital (e.g., A. or B. or Jr.) for those lines with such a value in field 2, we wish to have that value deleted. We also wish to do this... (1 Reply)
First, thanks for the help in previous posts... couldn't have gotten where I am now without it!
So here is what I have, I use AWK to match $1 and $2 as 1 string in file1 to $1 and $2 as 1 string in file2. Now I'm wondering if I can extend this AWK command to incorporate the following:
If $1... (4 Replies)
hello,
i have a little problem, i want match the complete field ($1 or $2) with a complete word in another variable.
example:
i have a file with either one or two words per lane:
hsa-mir-4449
hsa-mir-4707
hsa-mir-4707* hsa-mir-4707
novelMiR_3551 novelMiR_3563
novelMiR_4330... (4 Replies)
In the awk below I use $2 of filet to search filea for a match. If the values in $2 are exact match this works great. However, that is not always the case, so I need to perform the search using a range of + or - 2. That is if the value in filea $2 is within + or - 2 of filet $2 then it is matched.... (6 Replies)
I am trying to look for $2 of file1 (skipping the header) in $2 of file2 (skipping the header) and if they match and the value in $10 is > 30 and $11 is > 49, then print the line from file1 to a output file. If no match is foung the line is not printed. Both the input and output are tab-delimited.... (3 Replies)
Discussion started by: cmccabe
3 Replies
LEARN ABOUT BSD
strncat
STRING(3) Library Functions Manual STRING(3)NAME
strcat, strncat, strcmp, strncmp, strcasecmp, strncasecmp, strcpy, strncpy, strlen, index, rindex - string operations
SYNOPSIS
#include <strings.h>
char *strcat(s, append)
char *s, *append;
char *strncat(s, append, count)
char *s, *append;
int count;
strcmp(s1, s2)
char *s1, *s2;
strncmp(s1, s2, count)
char *s1, *s2;
int count;
strcasecmp(s1, s2)
char *s1, *s2;
strncasecmp(s1, s2, count)
char *s1, *s2;
int count;
char *strcpy(to, from)
char *to, *from;
char *strncpy(to, from, count)
char *to, *from;
int count;
strlen(s)
char *s;
char *index(s, c)
char *s, c;
char *rindex(s, c)
char *s, c;
DESCRIPTION
These functions operate on null-terminated strings. They do not check for overflow of any receiving string.
Strcat appends a copy of string append to the end of string s. Strncat copies at most count characters. Both return a pointer to the null-
terminated 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 count characters. Strcasecmp and strncasecmp are
identical in function, but are case insensitive. The returned lexicographic difference reflects a conversion to lower-case.
Strcpy copies string from to to, stopping after the null character has been moved. Strncpy copies exactly count characters, appending
nulls if from is less than count characters in length; the target may not be null-terminated if the length of from is count or more. Both
return to.
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. Set-
ting c to NULL works.
4th Berkeley Distribution October 22, 1987 STRING(3)