10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
So the tag for this forum says all newbies welcome...
All I want to do is go through my file and find lines which contain a given string of characters then replace these with a blank line. I really tried to find a simple command to do this but failed.
Here's what I did come up with though:
... (2 Replies)
Discussion started by: Golpette
2 Replies
2. Shell Programming and Scripting
Can someone tell me how I can do this?
e.g:
a=$(echo -e wert trewt ertert ertert ertert erttert
erterte
rterter
tertertert
ert)
How do i replace the STRING with $a?
I try this:
sed -i 's/STRING/'"$a"'/g' filename.ext
but this don' t work (2 Replies)
Discussion started by: jforce
2 Replies
3. Shell Programming and Scripting
Hello,
I have a file, which looks like:
I want to print the row containg "PRO" in second column after comparing and finding the minimum value of fifth column present in all "PRO". and likewise for every other string present in second column.
I am using :
filename=list... (2 Replies)
Discussion started by: CAch
2 Replies
4. Shell Programming and Scripting
Hello all,
I need to print all the lines before a specific string and print a custom message 2 lines after that.
So far I have managed to print everything up the string, inclusively, but I can't figure out how to print the 2 lines after that and the custom message.
My code thus far is:... (4 Replies)
Discussion started by: SEinT
4 Replies
5. Shell Programming and Scripting
finding a string with another string is found
EX:
abs c/-
i want to find /-, then copy abs. i know it's easy use awk, but my problem is the substr syntax.
substr($2,2,2) will give me /-
but the conflict is /- is not always the second characted of the second string. (11 Replies)
Discussion started by: engr.jay
11 Replies
6. Shell Programming and Scripting
Hi,
I am trying to locate the occurences of certain pattern like 'Possible network disconnect' in a text file. I can get the actual lines matching the pttern using:
grep -w 'Possible network disconnect' file_name.
But I am more interested in getting the timing of these events which are... (7 Replies)
Discussion started by: sagarparadkar
7 Replies
7. Shell Programming and Scripting
I am trying to search a file for a value: "Top 30 reject reasons" and want the next 30 lines after that and output in a text file.
If I knew the line number, I can use a combination of head and tail commands to get my results, but this doesn't seem to work when I don't have a line number.
I... (2 Replies)
Discussion started by: oriqin
2 Replies
8. Shell Programming and Scripting
Hi Guys,
I am trying to write a perl script to search a string "Name" in the file "FILE" and also want to create a new file and push the searched string Name line along with 10 lines following the same.
can anyone of you please let me know how to go about it ? (8 Replies)
Discussion started by: sukrish
8 Replies
9. Emergency UNIX and Linux Support
Hi All,
I have a requirement as below
I need find for a string in a log file and once i found that string i need to send a mail.Thsi can be done thru grep and mailx cmnd.
Here once i found the string i need to send last 50 lines(up) from where string found.
Actually they require to find... (9 Replies)
Discussion started by: pssandeep
9 Replies
10. Shell Programming and Scripting
Hello folks
I have a text file abcd.txt and has a line starting with number '8'.
I have a string in this line starting at position 'a' to position 'b'
also this string is a number and have to be reduced by 1. there is also a problem that it has to be padded with zeros to make the string... (2 Replies)
Discussion started by: sandyg
2 Replies
paste(1) General Commands Manual paste(1)
NAME
paste - merge same lines of several files or subsequent lines of one file
SYNOPSIS
file1 file2 ...
list file1 file2 ...
list] file1 file2 ...
DESCRIPTION
In the first two forms, concatenates corresponding lines of the given input files file1, file2, etc. It treats each file as a column or
columns in a table and pastes them together horizontally (parallel merging). In other words, it is the horizontal counterpart of cat(1)
which concatenates vertically; i.e., one file after the other. In the option form above, replaces the function of an older command with
the same name by combining subsequent lines of the input file (serial merging). In all cases, lines are glued together with the tab char-
acter, or with characters from an optionally specified list. Output is to standard output, so can be used as the start of a pipe, or as a
filter if is used instead of a file name.
recognizes the following options and command-line arguments:
Without this option, the new-line characters
of all but the last file (or last line in case of the option) are replaced by a tab character. This option allows replac-
ing the tab character by one or more alternate characters (see below).
list One or more characters immediately following replace the default tab as the line concatenation character. The list is
used circularly; i.e., when exhausted, it is reused. In parallel merging (that is, no option), the lines from the last
file are always terminated with a new-line character, not from the list. The list can contain the special escape
sequences: (new-line), (tab), (backslash), and (empty string, not a null character). Quoting may be necessary if charac-
ters have special meaning to the shell. (For example, to get one backslash, use ).
Merge subsequent lines rather than one from each input file.
Use tab for concatenation, unless a list is specified with the option. Regardless of the list, the very last character of
the file is forced to be a new-line.
Can be used in place of any file name
to read a line from the standard input (there is no prompting).
EXTERNAL INFLUENCES
Environment Variables
determines the locale for the interpretation of text as single- and/or multi-byte characters.
determines the language in which messages are displayed.
If or is not specified in the environment or is set to the empty string, the value of is used as a default for each unspecified or empty
variable. If is not specified or is set to the empty string, a default of "C" (see lang(5)) is used instead of
If any internationalization variable contains an invalid setting, behaves as if all internationalization variables are set to "C". See
environ(5).
International Code Set Support
Single- and multi-byte character code sets are supported.
RETURN VALUE
These commands return the following values upon completion:
Completed successfully.
An error occurred.
EXAMPLES
List directory in one column:
List directory in four columns
Combine pairs of lines into lines
Notes
works similarly, but creates extra blanks, tabs and new-lines for a nice page layout.
DIAGNOSTICS
Except for the option, no more than - 3 input files can be specified (see limits(5)).
AUTHOR
was developed by OSF and HP.
SEE ALSO
cut(1), grep(1), pr(1).
STANDARDS CONFORMANCE
paste(1)