10-17-2011
Quote:
Originally Posted by
chedlee88-1
#!/bin/sh
for i in filelist*
do
NUMCHAR=`cat $i | wc -c`
echo "ABC,$NUMCHAR" >${i}.new
cat $i >>${i}.new
done
Not all of those cats are useless, but
some are.
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
All,
I am new to unix and i have the following requirement.
I have file(s) landing into input directory with timestamp, first i want to copy all these files into seperate directory then i want to rename these files without timestamp and also remove header,trailer from that file..
Could... (35 Replies)
Discussion started by: ksrams
35 Replies
2. Shell Programming and Scripting
Hi All,
I am karthik. I am new to this forum. I have one requirement.
I have a file with header and footer.
Header may be like
HDR0001
or
FILE20090110
(Assume it is unknown so far, but i am sure there is a header in the file)
likewise file has the trailer too.
I just... (7 Replies)
Discussion started by: karthi_gana
7 Replies
3. Shell Programming and Scripting
Hi all,
I have a requirement to create a Header &Trailer for a file which is having 20 millions of records.
If I use the following method, i think it will take more time.
cat "Header"> file1.txt
cat Data_File>>file1.txt
cat "Trailer">>file1.txt
since second CAT command has to read all... (4 Replies)
Discussion started by: Raamc
4 Replies
4. Shell Programming and Scripting
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)
Discussion started by: e1994264
2 Replies
5. UNIX for Dummies Questions & Answers
for example, i have a file with below content:
123413
866688
816866
818818
i want the output as:
This is header
123413
866688
816866
818818
This is trailer
i am able to achieve it using a bash script. (2 Replies)
Discussion started by: pandeesh
2 Replies
6. Shell Programming and Scripting
Hi All,
I am trying write a simple command using AWK and SED to this but without any success.
Here is what I am using:
head -1 test1.txt>test2.txt|sed '1d;$d' test1.txt|awk '{print substr($0,0,(length($0)-2))}' >>test2.txt|tail -1 test1.txt>>test2.txt
Input:
Header
1234567
abcdefgh... (2 Replies)
Discussion started by: nvuradi
2 Replies
7. Shell Programming and Scripting
Hi,
I need a script that validates a file header/detail/trailer. File layout is:
Header - Rec_Type|File_name|File_Date
Detail - Rec_Type|field1|field2|field3...
Trailder - Rec_Type|File_name|File_Date|Record_count
Sample Data:
HDR|customer_data.dat|20120709... (7 Replies)
Discussion started by: ash_sh
7 Replies
8. Shell Programming and Scripting
please see my requirement, I hope I am clear. (9 Replies)
Discussion started by: mirwasim
9 Replies
9. Shell Programming and Scripting
I need to split the file based on pattern from position 34-37 while retaining the header and trailer records in each individual split file
Also is it possible to output the TOM and PAT records in the same output file ?
I need the output file names same as xyz_pattern_Datetimestamp.txt
... (23 Replies)
Discussion started by: techedipro
23 Replies
10. UNIX for Advanced & Expert Users
I have a EBCDIC multi layout file which has a header record which is 21 bytes, The Detail records are 2427 bytes long and the trailer record is 9 bytes long.
Is there a command to remove the header as well as trailer record and read only the detail records while at the same time not altering... (1 Reply)
Discussion started by: abhilashnair
1 Replies
GZEXE(1) General Commands Manual GZEXE(1)
NAME
gzexe - compress executable files in place
SYNOPSIS
gzexe [ name ... ]
DESCRIPTION
The gzexe utility allows you to compress executables in place and have them automatically uncompress and execute when you run them (at a
penalty in performance). For example if you execute ``gzexe /bin/cat'' it will create the following two files:
-r-xr-xr-x 1 root bin 9644 Feb 11 11:16 /bin/cat
-r-xr-xr-x 1 bin bin 24576 Nov 23 13:21 /bin/cat~
/bin/cat~ is the original file and /bin/cat is the self-uncompressing executable file. You can remove /bin/cat~ once you are sure that
/bin/cat works properly.
This utility is most useful on systems with very small disks.
OPTIONS
-d Decompress the given executables instead of compressing them.
SEE ALSO
gzip(1), znew(1), zmore(1), zcmp(1), zforce(1)
CAVEATS
The compressed executable is a shell script. This may create some security holes. In particular, the compressed executable relies on the
PATH environment variable to find gzip and some other utilities (tail, chmod, ln, sleep).
BUGS
gzexe attempts to retain the original file attributes on the compressed executable, but you may have to fix them manually in some cases,
using chmod or chown.
GZEXE(1)