I'm trying to write a bash script to perform a tedious task, but I have no experience and hardly any knowledge so I've been having a rough time with it.
I'm on Mac OS X, and I want a script to do the following:
I have a directory that has about 200 sudirectories. In each of these directories,... (1 Reply)
Hello,
I am new to shell scripting.
I have a input file: Few lines of the input file has the following.
/a0012/abcd12/abcd12
/a0003/xyzab1/lmno123
/a0006/pqrst1/abcde12
In my output file, I only need to get anything that is between the first and second '/' of each line: exampple:... (6 Replies)
i am still confusing on how to use sed, grep and awk if the input is not a file but a variable.
such as:
a="hello world"
b="how are you"
c="best wish to you"
d="222,333,444"
what if i want to check which variable $a,$b,$c,$d have contain "you"
what if i want to replace the word "you"... (9 Replies)
Hi all,
I am relatively new to Unix... Pls help me with the following :
is there an option ion grep to find the first and last occurence of a pattern in a file?
if not how else can this be accomplished?
Cheers,
Bourne. (5 Replies)
Write a sed script to extract the year, rank, and stock for the most recent 10 years available in the file top10_mktval.csv, and output in the following format:
------------------------------
YEAR |RANK| STOCK
------------------------------
2007 | 1 | Exxon... (1 Reply)
how can you create a script that would show the words you grep for as so
grep -i WORD file.name
This is where the WORD is. ^^^^
the ^ should be the same number of letters and directly or nearly under the word in question. thanks (1 Reply)
Greetings all,
Unix rookie here, just diving into ksh scripting for the first time.
My question may seem confusing but please bear with me:
If I'm understanding everything I'm reading properly, it seems like the ksh language itself doesn't have a lot of string manipulation functions of... (2 Replies)
Hi all,
I know this question has probably been answered before, but I am struggling with this problem, even after googling a million pages.
In a file named rdmt.conf
I need a single character replaced, the number in the line below
CUR_OC4J_ID=1
It will always appear after... (3 Replies)
Hello,
Is there a way in grep to remember patterns?
For eg: int a,b,c,d,a;
If a variable is declared twice, like in the previous example, I should be able to print only those lines.
Is there a way to print only the lines where the variable name occurs more than once, using grep... (1 Reply)
Hi All,
I have a file with following sample data. I am also attaching the file.
(Est) (Est) Jobs Sch
Workstation Job Stream SchedTime State Pr Start Elapse # OK Lim
POOL #ACR_BILLING 0005 08/15 ... (2 Replies)
Discussion started by: Kevin Tivoli
2 Replies
LEARN ABOUT PLAN9
tr
TR(1) General Commands Manual TR(1)NAME
tr - translate characters
SYNOPSIS
tr [ -cds ] [ string1 [ string2 ] ]
DESCRIPTION
Tr copies the standard input to the standard output with substitution or deletion of selected characters (runes). Input characters found
in string1 are mapped into the corresponding characters of string2. When string2 is short it is padded to the length of string1 by dupli-
cating its last character. Any combination of the options -cds may be used:
-c Complement string1: replace it with a lexicographically ordered list of all other characters.
-d Delete from input all characters in string1.
-s Squeeze repeated output characters that occur in string2 to single characters.
In either string a noninitial sequence -x, where x is any character (possibly quoted), stands for a range of characters: a possibly empty
sequence of codes running from the successor of the previous code up through the code for x. The character followed by 1, 2 or 3 octal
digits stands for the character whose 16-bit value is given by those digits. The character sequence followed by 1, 2, 3, or 4 hexadecimal
digits stands for the character whose 16-bit value is given by those digits. A followed by any other character stands for that character.
EXAMPLES
Replace all upper-case ASCII letters by lower-case.
tr A-Z a-z <mixed >lower
Create a list of all the words in one per line in where a word is taken to be a maximal string of alphabetics. String2 is given as a
quoted newline.
tr -cs A-Za-z '
' <file1 >file2
SOURCE
/sys/src/cmd/tr.c
SEE ALSO sed(1)TR(1)