hi,
I need to write a command with sed to find all the lines in a file that contain patterns of three or more characters that repeat once and put them inside perenthezes. I cannot tell sed what pattern to look for. it should find repeated patterns automatically.
example:... (1 Reply)
I gotta write a command to change the accounts in /etc/passwd that use a shell other than the bash to bash shell. those accounts that dont use a shell shouldnt get modified. assuming all the shell programs end in sh and other programs dont. and the result should go into /etc/passwd.rev
any hint? (4 Replies)
HI,
Can't seem to find anything on the forums to fix this.
I have a file, one line within this will not have a specific string at the end.
I have the string, but need to append it to the specific line which has it missing.
I need to use a variable for this, $string - I am using double... (13 Replies)
Hi,
I am trying to write a shell script designed to take input line by line by line from a file with a word on each line for editing with sed. Example file:
1.ejverything
2.bllown
3.maikling
4.manegement
5.existjing
6.systems
My design currently takes input from the user, and... (2 Replies)
Hi All,
I need your assistance, I would like to replace all lines beginning with the word "begin" with the below text:
Device | IPMB0-A | IPMB0-B
Board Address |Sent SentErr %Errr |Sent SentErr ... (10 Replies)
Howdy folks,
I'm trying to craft a log file summarisation tool for an application that creates a lot of duplicate entries with only a different suffix to indicate point of execution. I thought I'd gotten close but I'm clearly missing something.
Here's a genericized version:
A text_file... (3 Replies)
Hello all,
I need some help and education creating a script.
Basically I have a file with a list of numbers..
2125554444
2124445555
I need to put them into a format that looks like this....
UQ-V8.1,2125554444,hdaudio
UQ-V8.1,2124445555,hdaudio
Any help would be greatly... (6 Replies)
Hello,
I'm attempting to play with sed commands again...
I have a file named test1 with numbers...ex:5551234567
I run this sed on the file...
cat test1 | sed 's/^/homeDnModify "/g' | sed 's/$/" "" 3/g' >test2
Im hoping it will look like this...
homeDnModify "551235" "4567" ""... (5 Replies)
Hello everyone.
I am trying to replace
sprintf(buffer, "{\"id\":1,\"method\":\"mining.update_block\",\"params\":}\n", coinid, blockhash);
with
sprintf(buffer, "{\"id\":1,\"method\":\"mining.update_block\",\"params\":}\n", coinid, blockhash);
this is the code I was trying but is... (9 Replies)
Hi,
I am trying to extract line number (first number), as well as everything from TSVal onwards.
4 1.474005 172.18.124.142 -> 74.125.228.46 TCP 2450940617 74 44021 > https Seq=0 Win=5840 Len=0 MSS=1380 SACK_PERM=1 TSval=2450940617 TSecr=0 WS=64
6 1.488149 172.18.124.142 ->... (1 Reply)
Discussion started by: sand1234
1 Replies
LEARN ABOUT OSF1
look
look(1) General Commands Manual look(1)NAME
look - Finds lines in a sorted list
SYNOPSIS
look [-df] [-tcharacter] string [file]
The look command prints all lines in a sorted file that begin with string.
OPTIONS
Uses dictionary order; only letters, digits, tabs, and spaces are used in comparisons. Searches without regard to case; treats uppercase
and lowercase as equivalent. Ignores character and characters following it in the search string. If you specify look -tC ABCDE, the
string ABCDE would become (in effect) AB, with CDE being ignored. This option is primarily for shell scripts, in which more than one
string is being processed.
DESCRIPTION
If no file is specified, look searches in the system word list /usr/share/dict/words, with the options -df assumed by default.
The look command uses binary search.
The -d and -f options affect comparisons as in sort.
NOTES
In order to use the -f option, you must first sort file with the sort -f command; otherwise, look displays only lowercase items.
If you do not specify -f, but specify a file (such as /usr/share/dict/words) that has been sorted with sort -f, look may not produce any
output.
EXAMPLES
To search a sorted file called sortfile for all lines that begin with the string as, enter: look as sortfile To search the system word list
for all words beginning with smi, enter: look smi
This might result in: smile smirk smith smithereens Smithfield Smithson smithy smitten
FILES
System word list.
SEE ALSO
Commands: grep(1), sort(1), spell(1)look(1)