09-02-2011
9 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi,
I am not sure how to start doing this so I hope to get some advice as to how to start.
I have 2 files. The source file contains data that I needed is in columns delimited by ";". For example, in this format:
"CONTINENT","COUNTRY","CITY","ID"
"asia","japan","tokyo","123"... (21 Replies)
Discussion started by: ReV
21 Replies
2. Shell Programming and Scripting
Hi All,
Im having a file named logserver.txt. I want a perl script to take a backup of that file, along with the datestamp; move the file to a different location or empty the contents of the file after backup.
Remember, the file gets generated when the related service starts. My condition is... (14 Replies)
Discussion started by: ntgobinath
14 Replies
3. Shell Programming and Scripting
Hi all,
I have two log files A and B. Where files A have 10 lines and file b has 5 lines.
Out of them 3 lines are common to both of them. I want to compare both the files and want to delete the common data from file A(file B should remain as it is)
example :
file A :
1
2
3
4... (5 Replies)
Discussion started by: rdhanek
5 Replies
4. UNIX for Dummies Questions & Answers
Give shell script....which takes two file names as input and compares the contents, is both are same delete second file's contents.....
I try with "diff"...... but confusion how to use "diff" with if ---else
Thanking you (5 Replies)
Discussion started by: krishnampkkm
5 Replies
5. Shell Programming and Scripting
Hi,
I am new to shell programming and need help. I have File1 with some ID numbers and File2 with ID number and some associated information.
I want to match the ID numbers from File1 to contents in File2 and output a third file which pulls out the ID numbers and the associated information with... (2 Replies)
Discussion started by: newpro
2 Replies
6. Shell Programming and Scripting
Hi,
I am facing issue while reading data from a file in UNIX. my requirement is to compare two files and for the text pattern matching in the 1st file, replace the contents in second file by the contents of first file from start to the end and write the contents to thrid file.
i am able to... (2 Replies)
Discussion started by: seeki
2 Replies
7. Shell Programming and Scripting
Hi one of the output of the command is as below
# sed -n "/CCM-ResourceHealthCheck:/,/---------/{/CCM-ResourceHealthCheck:/d;/---------/d;p;}" Automation.OutputZ$zoneCounter | sed 's/$/<br>/'
Resource List : <br>
*************************** 1. row ***************************<br>
... (2 Replies)
Discussion started by: vivek d r
2 Replies
8. Shell Programming and Scripting
Shell script logic
Hi
I have 2 input files like with file 1 content as (file1)
"BRGTEST-242" a.txt "BRGTEST-240" a.txt "BRGTEST-219" e.txt
File 2 contents as fle(2)
"BRGTEST-244" a.txt "BRGTEST-244" b.txt "BRGTEST-231" c.txt "BRGTEST-231" d.txt "BRGTEST-221" e.txt
I want to get... (22 Replies)
Discussion started by: pottic
22 Replies
9. UNIX for Beginners Questions & Answers
I am trying to consolidate multiple information files (<hostname>.Linux.nfslist) into one file so that I can import it into Excel. I can get the file contents with cat *Linux.nfslist >> nfslist.txt. I need each line prefaced with the hostname. I am unsure how to do this.
--- Post updated at... (5 Replies)
Discussion started by: Kentlee65
5 Replies
CAT(1) BSD General Commands Manual CAT(1)
NAME
cat -- concatenate and print files
SYNOPSIS
cat [-belnstuv] [file ...]
DESCRIPTION
The cat utility reads files sequentially, writing them to the standard output. The file operands are processed in command-line order. If
file is a single dash ('-') or absent, cat reads from the standard input. If file is a UNIX domain socket, cat connects to it and then reads
it until EOF. This complements the UNIX domain binding capability available in inetd(8).
The options are as follows:
-b Number the non-blank output lines, starting at 1.
-e Display non-printing characters (see the -v option), and display a dollar sign ('$') at the end of each line.
-l Set an exclusive advisory lock on the standard output file descriptor. This lock is set using fcntl(2) with the F_SETLKW command.
If the output file is already locked, cat will block until the lock is acquired.
-n Number the output lines, starting at 1.
-s Squeeze multiple adjacent empty lines, causing the output to be single spaced.
-t Display non-printing characters (see the -v option), and display tab characters as '^I'.
-u Disable output buffering.
-v Display non-printing characters so they are visible. Control characters print as '^X' for control-X; the delete character (octal
0177) prints as '^?'. Non-ASCII characters (with the high bit set) are printed as 'M-' (for meta) followed by the character for the
low 7 bits.
EXIT STATUS
The cat utility exits 0 on success, and >0 if an error occurs.
EXAMPLES
The command:
cat file1
will print the contents of file1 to the standard output.
The command:
cat file1 file2 > file3
will sequentially print the contents of file1 and file2 to the file file3, truncating file3 if it already exists. See the manual page for
your shell (e.g., sh(1)) for more information on redirection.
The command:
cat file1 - file2 - file3
will print the contents of file1, print data it receives from the standard input until it receives an EOF ('^D') character, print the con-
tents of file2, read and output contents of the standard input again, then finally output the contents of file3. Note that if the standard
input referred to a file, the second dash on the command-line would have no effect, since the entire contents of the file would have already
been read and printed by cat when it encountered the first '-' operand.
SEE ALSO
head(1), more(1), pr(1), sh(1), tail(1), vis(1), zcat(1), fcntl(2), setbuf(3)
Rob Pike, "UNIX Style, or cat -v Considered Harmful", USENIX Summer Conference Proceedings, 1983.
STANDARDS
The cat utility is compliant with the IEEE Std 1003.2-1992 (``POSIX.2'') specification.
The flags [-belnstv] are extensions to the specification.
HISTORY
A cat utility appeared in Version 1 AT&T UNIX. Dennis Ritchie designed and wrote the first man page. It appears to have been cat(1).
BUGS
Because of the shell language mechanism used to perform output redirection, the command ``cat file1 file2 > file1'' will cause the original
data in file1 to be destroyed!
The cat utility does not recognize multibyte characters when the -t or -v option is in effect.
BSD
January 29, 2013 BSD