08-29-2012
Quote:
Originally Posted by
gagandeep
use sed to replace without opening file .
Nothing can edit a file without opening it. Files don't work that way.
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1. Shell Programming and Scripting
Hello All,
Can somebody please help me how to accomplish the following :
I have a text file called data.txt that has the following information :
M|88494-998494
M|98jd#0094
M|88394-994049
M|GFG9980#009944
and so on...
I need to replace the value of M to either "S" or "X"... (3 Replies)
Discussion started by: negixx
3 Replies
2. UNIX for Dummies Questions & Answers
I am trying to edit each line in a file. The file has several columns delimitted by '|'.
I need to take out the last two columns.
Each line starts with a unique word through which I am storing the lines in a variable and cutting the last two colums.
But, when I am echoing the line, it is... (2 Replies)
Discussion started by: chiru_h
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3. Shell Programming and Scripting
Hi,
How can I edit a line in a file?
For example, a.txt contains:
start: 1 2 3 4
stop: a b c d
and I want to change "3" to "9"
and to add "5" after "4"
the result should be (a.txt):
start: 1 9 3 4 5
stop: a b c d
Thanks,
zed (5 Replies)
Discussion started by: zed
5 Replies
4. Shell Programming and Scripting
Hello,
I have to add the string "YES" to the end of all records of files in a dir other than the first(header) and the last(trailer) record. viz, the first and the last record in a file has to be identified and exempted from the edit.
I tried an awk script. But there seems to be no direct... (8 Replies)
Discussion started by: rogersed
8 Replies
5. UNIX for Dummies Questions & Answers
hi,
i need to remove the first column (and dash) from this text file.
Is there any unix command allowing me to do it ?
1-16
2-28
3-16
4-20
5- 8
6-32
7-19
8-16
9-27
10- 7
11-14
12-18
thanks (2 Replies)
Discussion started by: aneuryzma
2 Replies
6. Shell Programming and Scripting
Hi,
I lack the utter fundamentals on how to craft an awk script.
I have hundreds of text files that were mangled by .doc format so all the lines are broken up so I need to join all of the lines of text into a single line. Normally I use vim command "ggVGJ" to join all lines but with so many... (3 Replies)
Discussion started by: n00ti
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7. Shell Programming and Scripting
Hello All,
My file content is:
DROP TABLE
"FACT_WORLD";
CREATE TABLE "FACT_WORLD" (
"AR_ID" INTEGER NOT NULL,
"ORG_ID" INTEGER NOT NULL
)
DATA CAPTURE NONE
COMPRESS YES;
I want to change this file to have entries in one... (6 Replies)
Discussion started by: akash2508
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8. Shell Programming and Scripting
Hi i have a file like this
mailboxnum 20
filename <to subsitute>
fileloaction /home/dd234/
filetype txt
in a directory i have set of files for ex:
TT45.1.2
TT45.1.3
TT45.1.4
.
.
in for loop i have to take this files and subsitute one by one
ex: (1 Reply)
Discussion started by: greenworld123
1 Replies
9. Shell Programming and Scripting
We have a huge file which has just one really large line; about 500 MB. I want to
1. Count all the occurrences of a phrase
2. Replace the phrase with another.
Trying to open it using vi has not helped as it complains that it is too large. Can any script help? Please advise.
Thank you, (12 Replies)
Discussion started by: kaushikadya
12 Replies
10. Shell Programming and Scripting
hi, could someone share a short script that would process a .txt file and do the following, for example the text file has this form
0:1.0 1:1.0 2:2.0 3:3.0 4:4.0 5:5.0 6:6.0 7:7.0 8:8.0 ... {newline}
9:9.0 10:10.0 11:11.0 12:12.0 13:13.0 14:14.0 15:15.0 16:16.0 17:17.0 ... {newline}
and I... (3 Replies)
Discussion started by: c_lady
3 Replies
is a text formatter. Its input consists of the text to be out-
put, intermixed with formatting commands. A formatting command
is a line containing the control character followed by a two
character command name, and possibly one or more arguments. The
control character is initially . (dot). The formatted output is
produced on standard output. The formatting commands are listed
below, with being a number, being a character, and being a title.
A + before n means it may be signed, indicating a positive or
negative change from the current value. Initial values for where
relevant, are given in parentheses.
.ad Adjust right margin.
.ar Arabic page numbers.
.br Line break. Subsequent text will begin on a new line.
.bl n Insert n blank lines.
.bp +n Begin new page and number it n. No n means +1.
.cc c Control character is set to c.
.ce n Center the next n input lines.
.de zz Define a macro called zz. A line with .. ends definition.
.ds Double space the output. Same as .ls 2.
.ef t Even page footer title is set to t.
.eh t Even page header title is set to t.
.fi Begin filling output lines as full as possible.
.fo t Footer titles (even and odd) are set to t.
.hc c The character c (e.g., %) tells roff where hyphens are permitted.
.he t Header titles (even and odd) are set to t.
.hx Header titles are suppressed.
.hy n Hyphenation is done if n is 1, suppressed if it is 0. Default is 1.
.ig Ignore input lines until a line beginning with .. is found.
.in n Indent n spaces from the left margin; force line break.
.ix n Same as .in but continue filling output on current line.
.li n Literal text on next n lines. Copy to output unmodified.
.ll +n Line length (including indent) is set to n (65).
.ls +n Line spacing: n (1) is 1 for single spacing, 2 for double, etc.
.m1 n Insert n (2) blank lines between top of page and header.
.m2 n Insert n (2) blank lines between header and start of text.
.m3 n Insert n (1) blank lines between end of text and footer.
.m4 n Insert n (3) blank lines between footer and end of page.
.na No adjustment of the right margin.
.ne n Need n lines. If fewer are left, go to next page.
.nn +n The next n output lines are not numbered.
.n1 Number output lines in left margin starting at 1.
.n2 n Number output lines starting at n. If 0, stop numbering.
.ni +n Indent line numbers by n (0) spaces.
.nf No more filling of lines.
.nx f Switch input to file f.
.of t Odd page footer title is set to t.
.oh t Odd page header title is set to t.
.pa +n Page adjust by n (1). Same as .bp
.pl +n Paper length is n (66) lines.
.po +n Page offset. Each line is started with n (0) spaces.
.ro Page numbers are printed in Roman numerals.
.sk n Skip n pages (i.e., make them blank), starting with next one.
.sp n Insert n blank lines, except at top of page.
.ss Single spacing. Equivalent to .ls 1.
.ta Set tab stops, e.g., .ta 9 17 25 33 41 49 57 65 73 (default).
.tc c Tabs are expanded into c. Default is space.
.ti n Indent next line n spaces; then go back to previous indent.
.tr ab Translate a into b on output.
.ul n Underline the letters and numbers in the next n lines.