Also if there are many different files in column 1 of the real input file, you need to close them afterwards otherwise awk will complain that there are too many files open...
Hi,
I needs to split *.txt files from single directory depends on the some mutltiple input values. i have wrote the code like below
for file in *.txt
do
grep -i -h "value1|value2" $file > $file;
done.
My requirment is more input values needs to be given in grep; let us say 50... (3 Replies)
Dear All,
I need to add a header of one line to an already existing file.
I know that it can be achieved by the following:
echo "Header" > newfile
cat file1 >> newfile
But my problem is that file is huge and there is no space for creating a new file every time. Is there a way that I can... (5 Replies)
Hello,
I’m trying to add a row that will server as the header for a space separated file.
1-I have a number of files save in a directory
2- grep text path/*.log > newfile
newfile looks like this
Field1 Field2 Field3 Field4
Field1 Field2 Field3 Field4
Field1 Field2 Field3 Field4
Field1... (2 Replies)
How can we a shell script and pass date parameters .I have 3 files comming from Datastage with |" delimited
I need append 3 files as above: File1:
P0000|"47416954|"AU|"000|"INS|"0000|"|"20060601|"99991231|"|"|"|"|"01
File 2:... (2 Replies)
Hi,
I want to add the below Header to all the files in sequence File1,File2,File3...etc
"ABC,<number of chracter in the file>"
e,g - If File1 is as below
pqrstuvdt
abcdefgh
then I want to add the above header into it ,So that File1 becomes as below
ABC,17
pqrstuvdt
abcdefgh
... (9 Replies)
Hi team,
In my script i am storing some value in a variable "header".
I want to add the header value has header in a file.
Please help me on this
Thanks in advance,
Baski (4 Replies)
Hi All,
i have script like ...
"TYPE_ID" "ID" "LIST_ID"
"18" "52010" "1059"
"18" "52010" "1059"
"18" "52010" "1059"
"18" "52010" "1059"
i am using the below code it's not taking the header row.
awk -F"\t" -v file=test1.txt -v file1=test2.txt ' {
if(... (7 Replies)
I am trying to split into different files using awk:
cat files | gawk '$1 ~ /---/ || $1 ~ /^deleting$/ || $1 ~ /^sorting$/ || $1 ~ /==/ {print}'| gawk '$1 ~ /---/ || $1 ~ /^deleting$/ || $1 ~ /^sorting$/ || $1 ~ /==/ {print}' |gawk '//{x="F"++i;}{print > x;}'
What I am trying to do is make F*... (3 Replies)
Hi All ,
I have a pipe dilimited file .Sample file is below.I need to add header in that file through unix.
000001| 1|AQWWW|234,456.00 | | 123456| |41|abC| 0|xyZ|
000002| 2|11 4|1,234,456.99| | 0| |23| |99|! |
000003| 3|!!@#$|0,000,001.10| | ... (4 Replies)
Hello,
I have some large text files that look like,
putrescine
Mrv1583 01041713302D
6 5 0 0 0 0 999 V2000
2.0928 -0.2063 0.0000 N 0 0 0 0 0 0 0 0 0 0 0 0
5.6650 0.2063 0.0000 N 0 0 0 0 0 0 0 0 0 0 0 0
3.5217 ... (3 Replies)
Discussion started by: LMHmedchem
3 Replies
LEARN ABOUT REDHAT
filecache
FileCache(3pm) Perl Programmers Reference Guide FileCache(3pm)NAME
FileCache - keep more files open than the system permits
SYNOPSIS
use FileCache;
# or
use FileCache maxopen => 16;
cacheout $path;
print $path @data;
cacheout $mode, $path;
print $path @data;
DESCRIPTION
The "cacheout" function will make sure that there's a filehandle open for reading or writing available as the pathname you give it. It
automatically closes and re-opens files if you exceed your system's maximum number of file descriptors, or the suggested maximum.
cacheout EXPR
The 1-argument form of cacheout will open a file for writing ('>') on it's first use, and appending ('>>') thereafter.
cacheout MODE, EXPR
The 2-argument form of cacheout will use the supplied mode for the initial and subsequent openings. Most valid modes for 3-argument
"open" are supported namely; '>', '+>', '<', '<+', '>>', '|-' and '-|'
CAVEATS
If you use cacheout with '|-' or '-|' you should catch SIGPIPE and explicitly close the filehandle., when it is closed from the other end
some cleanup needs to be done.
While it is permissible to "close" a FileCache managed file, do not do so if you are calling "FileCache::cacheout" from a package other
than which it was imported, or with another module which overrides "close". If you must, use "FileCache::cacheout_close".
BUGS
sys/param.h lies with its "NOFILE" define on some systems, so you may have to set maxopen ($FileCache::cacheout_maxopen) yourself.
perl v5.8.0 2002-06-01 FileCache(3pm)