im trying to remove all occurences of " OF xyz " in a file where xyz could be any word assuming xyz is the last word on the line but I won't always be.
at the moment I have sed 's/OF.*//'
but I want a nicer solution which could be in pseudo code
sed 's/OF.* (next token)//'
Is... (6 Replies)
I currently use this bash for loop below to reverse a set of tokens, example "abc def ghi" to "ghi def abc" but in looking at various sed one liner postings I notice two methods to reverse lines of text from a file (emulating tac) and reversing letters in a string (emulating rev) so I've spent some... (1 Reply)
Hello-
Trying to add two numbers in a ksh shell scripts and i get this error every time I execute
stat1_ex.ksh: + : more tokens expected
stat1=`cat .stat1a.tmp | cut -f2 -d" "`
stat2=`cat .stat2a.tmp | cut -f2 -d" "`
j=$(($stat1 + $stat2)) # < Here a the like the errors out
echo $j... (3 Replies)
i store the output of ls in a variable FL
$FL=`ls`
$echo $FL
f1.txt f2.txt f3.txt f4.txt f5.txt script.sh script.sh~ test.txt
now if i want to retrive the sub-string "f1.txt" from $FL we were taught that this is what i have to do
$set $FL
$echo $1
f1.txt
and echo $2 would give... (1 Reply)
Hi everyone.
I am trying to develop my own shell,and i am in the part of redirection.
let's say the user gives as input
cat test > test2
in the array of arguments i want to keep only arg=cat,arg=test.
">" token is not an input file so cat cannot worka and test2 is output.how can i remove > and... (1 Reply)
Hi all,
I have a variable with value
DateFileFormat=NAME.CODE.CON.01.#.S001.V1.D$.hent.txt
I want this variable to get replaced with :
var2 is a variable with string value
DateFileFormat=NAME\\.CODE\\.CON\\.01\\.var2\\.S001\\.V1\\.D+\\.hent\\.txt\\.xml$
Please Help (3 Replies)
Hey everyone, i needed some help with this one. We move into a new file system (which should be the same as the previous one, other than the name directory has changed) and the script worked fine in the old file system and not the new. I'm trying to add the results from one with another but i'm... (4 Replies)
Hi All,
Im writing a shell script in which I want to get the folder names in one folder to be used in for loop.
I have used:
packsName=$(cd ~/packs/Acquisitions; ls -l| awk '{print $9}')
echo $packsName
o/p: opt temp user1 user2
ie. Im getting the output as a string.
But I want... (3 Replies)
I have a String class with a function that reads tokens using a delimiter.
For example
String sss = "6:8:12:16";
nfb = sss.nfields_b (':');
String tkb1 = sss.get_token_b (':');
String tkb2 = sss.get_token_b (':');
String tkb3 = sss.get_token_b (':');
String tkb4 =... (1 Reply)
Hello,
Trying to parse a file (in FASTA format) and reformat it.
1) Each record starts with ">" and followed by words separated by space, but they are in one same line for sure;
2) Sequences are following that may be in multiple rows with possible spaces inside until the next ">".... (18 Replies)
Discussion started by: yifangt
18 Replies
LEARN ABOUT REDHAT
uniq
UNIQ(1) FSF UNIQ(1)NAME
uniq - remove duplicate lines from a sorted file
SYNOPSIS
uniq [OPTION]... [INPUT [OUTPUT]]
DESCRIPTION
Discard all but one of successive identical lines from INPUT (or standard input), writing to OUTPUT (or standard output).
Mandatory arguments to long options are mandatory for short options too.
-c, --count
prefix lines by the number of occurrences
-d, --repeated
only print duplicate lines
-D, --all-repeated[=delimit-method] print all duplicate lines
delimit-method={none(default),prepend,separate} Delimiting is done with blank lines.
-f, --skip-fields=N
avoid comparing the first N fields
-i, --ignore-case
ignore differences in case when comparing
-s, --skip-chars=N
avoid comparing the first N characters
-u, --unique
only print unique lines
-w, --check-chars=N
compare no more than N characters in lines
--help display this help and exit
--version
output version information and exit
A field is a run of whitespace, then non-whitespace characters. Fields are skipped before chars.
AUTHOR
Written by Richard Stallman and David MacKenzie.
REPORTING BUGS
Report bugs to <bug-coreutils@gnu.org>.
COPYRIGHT
Copyright (C) 2002 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU-
LAR PURPOSE.
SEE ALSO
The full documentation for uniq is maintained as a Texinfo manual. If the info and uniq programs are properly installed at your site, the
command
info uniq
should give you access to the complete manual.
uniq (coreutils) 4.5.3 February 2003 UNIQ(1)