Grabbing lines from one file based on another file
Hi everyone,
I have a file that contains multiple columns. Basically the identifiers are on column 1. Here is an example:
My goal is to pull out certain identifiers from column 1 (pull the entire row) and put it into another file. The list of identifiers that I want will be in another file that looks like this
So ultimately my output will hopefully look like this:
These files are very large. I can do selected ones manually by using the unix code grep but this is a little bit more complex.
Hello,
I'm new to this forum and am not exactly sure where to post this question, so I'll start here. I'm looking for a command or simple script that will read in a large flat file (contains 2005 data) and will output a new file based on a quarter. Within each row, position 87-90 is a julian... (2 Replies)
Hello,
I have a file with tab delimited columns like:
File1
A 2 C R
F 4 D Q
C 9 A B
......
I want to grep out the lines in a second file, File2, corresponding to each line in File1
Can I do this:
while read a b c d
do
grep '$a\t$b\t$c\t$d' File2 >>... (2 Replies)
Hi Guys,
I have the following problem. I have original file (org.txt) that looks like this
module v_1(.....)
//arbitrary number of text lines
endmodule
module v_2(....)
//arbitrary number of text lines
endmodule
module v_3(...)
//arbitrary number of text lines
endmodule
module... (6 Replies)
Hi,
I would like to know how can I select lines of one file based on a common ID column from another file (keeping the order of the second file).
Example of file1:
ID A B C D
1-30 1 2 3
5-60 4 5 6
1-20 7 8 9
Example of file2:
ID chr pos
1-20 1 20
1-30 1 30
5-60 5 60
Desired... (2 Replies)
Hello,
I use UBUNTU 12.04.
I want to write a short program using awk to select some lines in a file based on a second file.
My first file has this format with about 400,000 lines and 47 fields:
SNP1 1 12.1
SNP2 1 13.2
SNP3 1 45.2
SNP4 1 23.4
My second file has this format:
SNP2
SNP3... (1 Reply)
I have a file that looks like this:
cat includes
CORP-CRASHTEST-BU
e:\crashplan\
CORP-TEST
/usr/openv/java
/usr/openv/logs
/usr/openv/man
CORP-LABS_TEST
/usr/openv/java
/usr/openv/logs
/usr/openv/man
What I want to do is make three new files with just those selections. So the three... (4 Replies)
Hi,
I need help with this-
input.txt :
L B white
X Y white
A B brown
M Y black
Read this input file and if 3rd column is "white", then add specific lines to another file insert.txt.
If 3rd column is brown, add different set of lines to insert.txt, and so on.
For example, the given... (6 Replies)
Hi,
I have a requirement where I need to combine two lines in a file based on first character of each line in a file.
Please find the sample content of the file below:
Code:
_______________________
5, jaya, male, 4-5-90, single
smart
6, prakash, male, 5-4-84, married
fair
7, raghavi,... (1 Reply)
Hi,
I have a requirement where I need to combine two lines in a file based on first character of each line in a file.
Please find the sample content of the file below:
Code:
_______________________
5, jaya, male, 4-5-90, single
smart
6, prakash, male, 5-4-84, married
fair
7, raghavi,... (1 Reply)
Hello,
I have two files of the following form. I would like to remove from File.A where the first three colum matches values in File.B to give the output in File.C
File.A
121 54321 PQR CAT
122 765431 ABC DOG
124 98765 ZXY TIGER
125 86432 GEF LION
File.B
122 765431 ABC
125 86432 GEF... (4 Replies)
Discussion started by: Gussifinknottle
4 Replies
LEARN ABOUT SUNOS
semids
semids(2) System Calls semids(2)NAME
semids - discover all semaphore identifiers
SYNOPSIS
#include <sys/sem.h>
int semids(int *buf, uint_t nids, uint_t *pnids);
DESCRIPTION
The semids() function copies all active semaphore identifiers from the system into the user-defined buffer specified by buf, provided that
the number of such identifiers is not greater than the number of integers the buffer can contain, as specified by nids. If the size of the
buffer is insufficient to contain all of the active semaphore identifiers in the system, none are copied.
Whether or not the size of the buffer is sufficient to contain all of them, the number of active semaphore identifiers in the system is
copied into the unsigned integer pointed to by pnids.
If nids is 0 or less than the number of active semaphore identifiers in the system, buf is ignored.
RETURN VALUES
Upon successful completion, semids() returns 0. Otherwise, -1 is returned and errno is set to indicate the error.
ERRORS
The semids() function will fail if:
EFAULT The buf or pnids argument points to an illegal address.
USAGE
The semids() function returns a snapshot of all the active semaphore identifiers in the system. More may be added and some may be removed
before they can be used by the caller.
EXAMPLES
Example 1: semids() example
This is sample C code indicating how to use the semids() function.
void
examine_semids()
{
int *ids = NULL;
uint_t nids = 0;
uint_t n;
int i;
for (;;) {
if (semids(ids, nids, &n) != 0) {
perror("semids");
exit(1);
}
if (n <= nids) /* we got them all */
break;
/* we need a bigger buffer */
ids = realloc(ids, (nids = n) * sizeof (int));
}
for (i = 0; i < n; i++)
process_semid(ids[i]);
free(ids);
}
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|MT-Level |Async-Signal-Safe |
+-----------------------------+-----------------------------+
SEE ALSO ipcrm(1), ipcs(1), intro(2), semctl(2), semget(2), semop(2), attributes(5)SunOS 5.10 8 Mar 2000 semids(2)