I am using korn shell unix.
I have a script that I am working with to do a check for me using a text file.
#finds "Time" from the text file and cuts the second field from the #line
A= grep Time test.txt | cut -f2
# the "#Missing" is being pulled from the second field of the text... (1 Reply)
Hello,
I just want to know how If it's possiple to define 2 variable using foreach command ???
I have directory inside that directory around 1000 file, I want to rename all of this files to something I have it in a list. Example :-
------This is what in my directory----------
d1
d2... (14 Replies)
I have a variable with a value of "05". When I add one to that variable, using the command: CURR_YY=`expr $CURR_YY + 1`, I get the value of "6", losing the leading zero (which is needed for passing to another script). How do I keep the leading zero?
Thank you! (10 Replies)
Hi all,
I have a variable say var1 (output from somewhere, which I can't change)which store something like this:
echo $var1
name=fred
age=25
address="123 abc"
password=pass1234
how can I make the variable $name, $age, $address and $password contain the info?
I mean do this in a... (1 Reply)
Hello,
I would like to define a variable based on another variable:
a=5
b$a=100
This does not work. What is the right way to do it?
Thanks
---------- Post updated at 07:37 PM ---------- Previous update was at 07:33 PM ----------
Found my answer with the search function (did not... (0 Replies)
Hi, Unix Gurus,
In our existing file, there is a script like
#!/bin/sh
step=${1:-0}
cur_step=10
if
...
My question is what's "${1:-0}" mean? I know it defines a variable but I don't know what's (1:-0) mean?
:wall:
Thanks in advance. (2 Replies)
Hi,
Is it possible in perl to have a hash defined with variables as theirs key values, like:
%account = ('username' => 'boy', 'password' => $password);
Thanks (1 Reply)
HI
I have file A.txt
_1A
_2A
_3A
_4A
I want define all as different variable.
$1A=_1A
$2B=_2A
$3C=_3A
$4D=_4A
Now i can use any variable in my script. (3 Replies)
Dear Shell script Experts,
I am working on shell script which is defined here, qsub_seq.csh . The purpose of this script is to read few input files (with defined starting index and last index) and make processing faster over server.
For some task, I had 1064 of input files, so I wrote another... (8 Replies)
Discussion started by: emily
8 Replies
LEARN ABOUT X11R4
uniq
UNIQ(1) User Commands UNIQ(1)NAME
uniq - report or omit repeated lines
SYNOPSIS
uniq [OPTION]... [INPUT [OUTPUT]]
DESCRIPTION
Filter adjacent matching lines from INPUT (or standard input), writing to OUTPUT (or standard output).
With no options, matching lines are merged to the first occurrence.
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, one for each group
-D print all duplicate lines
--all-repeated[=METHOD]
like -D, but allow separating groups with an empty line; METHOD={none(default),prepend,separate}
-f, --skip-fields=N
avoid comparing the first N fields
--group[=METHOD]
show all items, separating groups with an empty line; METHOD={separate(default),prepend,append,both}
-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
-z, --zero-terminated
line delimiter is NUL, not newline
-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 blanks (usually spaces and/or TABs), then non-blank characters. Fields are skipped before chars.
Note: 'uniq' does not detect repeated lines unless they are adjacent. You may want to sort the input first, or use 'sort -u' without
'uniq'. Also, comparisons honor the rules specified by 'LC_COLLATE'.
AUTHOR
Written by Richard M. Stallman and David MacKenzie.
REPORTING BUGS
GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
Report uniq translation bugs to <http://translationproject.org/team/>
COPYRIGHT
Copyright (C) 2017 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
SEE ALSO comm(1), join(1), sort(1)
Full documentation at: <http://www.gnu.org/software/coreutils/uniq>
or available locally via: info '(coreutils) uniq invocation'
GNU coreutils 8.28 January 2018 UNIQ(1)