10 More Discussions You Might Find Interesting
1. Linux
Hi
I want to extend following command so that on the basis of "Branch: ****" on the third line I can grep and print name of the file on the first line.
cat .labellog.emd | grep DA2458A7962276A7E040E50A0DC06459 | cut -d " " -f2 | grep -v branch_name | xargs -I file <command to describe> file
... (1 Reply)
Discussion started by: ezee
1 Replies
2. Shell Programming and Scripting
I have a file and when I match the word "initiators" in the first column I need to be able to print the rest of the columns in that row. This is fine for the most part but on occasion the "initiators" line gets wrapped to the next line. Here is a sample of the file.
caw-enabled ... (3 Replies)
Discussion started by: kieranfoley
3 Replies
3. Shell Programming and Scripting
Good day,
I have a list of regular expressions in file1. For each match in file2, print the containing line and the line after.
file1:
file2:
Output:
I can match a regex and print the line and line after
awk '{lines = $0} /Macrosiphum_rosae/ {print lines ; print lines } '
... (1 Reply)
Discussion started by: pathunkathunk
1 Replies
4. UNIX for Dummies Questions & Answers
I'm using sh on hp-ux and want to find / print a line that matches 132.101- and the next line, too. grep -A isn't supported on hp-ux, so I'm trying awk and sed.
The code below works but only prints the first occurence. I need all matches from the file.
awk... (2 Replies)
Discussion started by: Scottie1954
2 Replies
5. Shell Programming and Scripting
Hi guys,
is there are way to substitute the content of certain line in the file by another entry if line number is available?
For example, I have a variable A="HCMLPBBG" and a file MYFILE.
I need to substitute entry on line 18168 of MYFILE with the value of the variable "A".
Is there a way to... (1 Reply)
Discussion started by: aoussenko
1 Replies
6. UNIX for Dummies Questions & Answers
I have a file that I need to read each line and see if the line begins with a certain keyword. I can't seem to find something that works.
#!/bin/ksh
#
while read i
do
if ]
then
echo "SE2 WORKS"
elif ]
then
echo "CISCO1 WORKS"
fi
done < tmp/diff
The file looks something like
SE1
SE2... (2 Replies)
Discussion started by: numele
2 Replies
7. Shell Programming and Scripting
i have a file in this pattern
MATCH1 word1 IMAGE word3 word4
MATCH2 word1 word2 word3 word4
MATCH2 word1 word2 word3 word4
MATCH2 word1 word2 word3 word4
MATCH2 word1 word2 word3 word4
MATCH1 word1 IMAGE word3 word4
MATCH2 word1 word2 word3 word4
MATCH2 word1 word2 word3 word4
MATCH2 word1... (7 Replies)
Discussion started by: bangaram
7 Replies
8. UNIX for Advanced & Expert Users
Hi
Is there any command where we can insert a line "2|||" before every line starting with "3|"
my input is as follows
1|ETG|12345
3|79.58|||GBP||
1|ETG|12345
3|79.58|||GBP||
1|ETG|12345
2|EN_GB||Electrogalvanize 0.5 m2 ( Renault )
1|ETG|12345
3|88.51|||GBP||
desired output... (10 Replies)
Discussion started by: laxmi131
10 Replies
9. Shell Programming and Scripting
i have an file ,i want to substitute line
003 M 33 22 22 00
WITH NEW
003 M 24 26 28 00
how can i do it (2 Replies)
Discussion started by: RahulJoshi
2 Replies
10. Shell Programming and Scripting
Hi
I have an Input of following sort
AAAA:
ProgName="PROGRAM"
BBBB:
ProgName="BBBBBB"
CCCC:
DDDD:
ProgName="PROGRAM"
SSSS:
ProgName="PROGRAM"
ZZZZ:
ProgName="PROGRAM"
I want to find the Lines which are followed by ProgName="PROGRAM"
Out Put
AAAA: (11 Replies)
Discussion started by: pbsrinivas
11 Replies
grep(1) General Commands Manual grep(1)
Name
grep, egrep, fgrep - search file for regular expression
Syntax
grep [option...] expression [file...]
egrep [option...] [expression] [file...]
fgrep [option...] [strings] [file]
Description
Commands of the family search the input files (standard input default) for lines matching a pattern. Normally, each line found is copied
to the standard output.
The command patterns are limited regular expressions in the style of which uses a compact nondeterministic algorithm. The command patterns
are full regular expressions. The command uses a fast deterministic algorithm that sometimes needs exponential space. The command pat-
terns are fixed strings. The command is fast and compact.
In all cases the file name is shown if there is more than one input file. Take care when using the characters $ * [ ^ | ( ) and in the
expression because they are also meaningful to the Shell. It is safest to enclose the entire expression argument in single quotes ' '.
The command searches for lines that contain one of the (new line-separated) strings.
The command accepts extended regular expressions. In the following description `character' excludes new line:
A followed by a single character other than new line matches that character.
The character ^ matches the beginning of a line.
The character $ matches the end of a line.
A . (dot) matches any character.
A single character not otherwise endowed with special meaning matches that character.
A string enclosed in brackets [] matches any single character from the string. Ranges of ASCII character codes may be abbreviated
as in `a-z0-9'. A ] may occur only as the first character of the string. A literal - must be placed where it can't be mistaken as
a range indicator.
A regular expression followed by an * (asterisk) matches a sequence of 0 or more matches of the regular expression. A regular
expression followed by a + (plus) matches a sequence of 1 or more matches of the regular expression. A regular expression followed
by a ? (question mark) matches a sequence of 0 or 1 matches of the regular expression.
Two regular expressions concatenated match a match of the first followed by a match of the second.
Two regular expressions separated by | or new line match either a match for the first or a match for the second.
A regular expression enclosed in parentheses matches a match for the regular expression.
The order of precedence of operators at the same parenthesis level is the following: [], then *+?, then concatenation, then | and new
line.
Options
-b Precedes each output line with its block number. This is sometimes useful in locating disk block numbers by context.
-c Produces count of matching lines only.
-e expression
Uses next argument as expression that begins with a minus (-).
-f file Takes regular expression (egrep) or string list (fgrep) from file.
-i Considers upper and lowercase letter identical in making comparisons and only).
-l Lists files with matching lines only once, separated by a new line.
-n Precedes each matching line with its line number.
-s Silent mode and nothing is printed (except error messages). This is useful for checking the error status (see DIAGNOSTICS).
-v Displays all lines that do not match specified expression.
-w Searches for an expression as for a word (as if surrounded by `<' and `>'). For further information, see only.
-x Prints exact lines matched in their entirety only).
Restrictions
Lines are limited to 256 characters; longer lines are truncated.
Diagnostics
Exit status is 0 if any matches are found, 1 if none, 2 for syntax errors or inaccessible files.
See Also
ex(1), sed(1), sh(1)
grep(1)