You are on the right path, however, note that a slash is a metacharacter for sed. You have to escape your path slashes with backslash. Like:
Yeah, and the /^$/ is an empty line. A pattern /^[ \t]*$/ would be even better, if you suspect there may be some whitespace chars hidden.
However, isn't this too much work? Have you looked at find(1) yet?
Good Day,
Im new to scripting especially awk and sed. I just would like to ask help from you guys about a sed command that prints the line immediately after a regexp, but not the line containing the regexp.
sed -n '/regexp/{n;p;}' filename
What if my regexp is 3 word or a sentence. Im... (3 Replies)
Hi,
I would like to know how to solve one of my problems using expert unix commands.
I have a file with occasional blank lines;
for example;
dertu
frthu
fghtu
frtty
frtgy
frgtui
frgtu
ghrye
frhutp
frjuf
I need to edit the file so that the file looks like this; (10 Replies)
I am on a Solaris 10 x86 system
sample code
before3
before2
before1
group
after1
after2
after3
I want to grab the second line above my regexp
regexp=group
I want to grab ONLY the before2 line
I have numerous sed and awk ways of grabbing X line below the regexp, but no luck... (1 Reply)
Dear all,
I'm a new guy in Linux scripting. Basically, I have no idea on how to write a script.
Now, I have a problem in preparing my gaussian inputs.
For example, I have a file like this
File name: input.gjf
H 1.418400 1.180500 -1.247900
H -1.894500 1.628800 -0.000200
Product
H... (7 Replies)
Hi all,
This should be very easy but I can't figure it out...
I have a file that looks like this:
@SRR057408.1 FW8Y5CK02R652T length=34
AGCAGTGGTATCAACGCAGAGTAAGCAGTGGTAT
+SRR057408.1 FW8Y5CK02R652T length=34
FIIHFF6666?=:88@@@BBD:::?@ABBAAA>8
@SRR057408.2 FW8Y5CK02TBMHV length=52... (1 Reply)
All I want is to look for the pattern in the file...If I found it at # places... I want print lines after those pattern(line) until I find a blank line.
Log EXAMPLE :
MT:Exception caught
The following Numbers were affected:
1234
2345
2346
Error
java.lang.InternalError:... (3 Replies)
Hi All
I'm trying to extract the line just above a regexp and all lines after this.
I'm currently doing this in two steps
sed -n -e "/^+---/{g;p;}" -e h oldfile.txt > modified.txt
sed -e "1,/^+---/d" -e "/^$/d" oldfile.txt >>modified.txt
Sample
sometext will be here
sometext will be... (3 Replies)
Dear all
I want to search special string in file and then print next all line in one line until blank lines come. Help me plz for same. My input file and desire op file is as under.
i/p file:
A1/EXT "BSCABD1_21233G1" 757 130823 1157
RADIO X-CEIVER ADMINISTRATION
BTS EXTERNAL FAULT
... (7 Replies)
I'm looking for a way to print the 4th line back from a regular expression. Kind of like the below but it has to be the 4th line before the regexp.
Print the line immediately before regexp, but not the line containing the regexp.
sed -n '/regexp/{g;1!p;};h'
here is an example of logs(i... (11 Replies)
Hi All,
I need to print the characters in the previous line just before the regular expression match
Please have a look at the input file as attached
I need to match the regular expression ^ with the character of the previous like and also the pin numbers
and the output file should be like... (6 Replies)
Discussion started by: kshitij
6 Replies
LEARN ABOUT MINIX
roff
is a text formatter. Its input consists of the text to be out-
put, intermixed with formatting commands. A formatting commandis a line containing the control character followed by a twocharacter command name, and possibly one or more arguments. Thecontrol character is initially . (dot). The formatted output isproduced on standard output. The formatting commands are listedbelow, with being a number, being a character, and being a title.A + before n means it may be signed, indicating a positive ornegative change from the current value. Initial values for whererelevant, 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.