In sed you do not append text to the end of a line. The sed a command appends lines of text following the current line. And, the sed i command inserts lines of text before the current line.
You use the sed s command to replace or substitute specified text on a line with replacement text that you specify. If you want to replace the text OK at the end of a line with the string _DLY-OK, you use:
where the $ in OK$ anchors the matched text to the end of the line. OK found anywhere but at the end of the line will not be affected by this substitute command.
If you want to do that AND change every occurrence of the string daisy to the string tulip no matter where it appears on an input line, you use:
The -e was optional in the sed command above, but both -e options are required in this command. The sed command always takes at least one command argument. If there is more than one sed command argument, you need -e options in front of them so sed can determine which arguments are sed commands and which arguments are the names of files to be processed.
The g flag at the end of the substitute command s/daisy/tulip/g tells sed to make that substitution globally on each addressed line. Without the g flag (i.e., s/daisy/tulip/), only the first occurrence of daisy on each addressed line would be changed to tulip.
This User Gave Thanks to Don Cragun For This Post:
Hi everyone
I just need a script that should just search for a particular keyword in a line and after that it should add some text to the next line.
I have tried it in HAMILTON CSHELL using
sed "hello/a\newtext" file.txt
But it give me message
sed: "\" must terminate the "a"... (4 Replies)
Hi all
I tried this on an old version of sed on NCR Unix MP-RAS:
sed -e "s/$/nnn/" file1 >file2
This file (file1):
the cat sat on the mat.
the cat sat on the mat.
the cat sat on the mat.
becomes this (file2):
the cat sat on the mat.nnn
the cat sat on the mat.nnn
nnn
the... (3 Replies)
Hi All
I'm trying to insert a pattern if a pattern is found in a file.
This is my sample file
"PDA"|"Celvin"|"PRJ_NA"|"Completion_Units"|25
"PDA"|"Celvin"|"PRJ_AB"|"Completion_Units"|250
I would like to output as
"PDA"|"Celvin"|"PRJ_NA"|"Completion_Units"|"Done"|25... (3 Replies)
Input:
gstreamer-plugins-good
gstreamer-plugins-bad
gstreamer-plugins-ugly
Output should be:
gstreamer-plugins-good gstreamer-plugins-bad gstreamer-plugins-ugly
How can it be done with sed? (5 Replies)
I have a file like below
#GROUP A belongs to Asia
GROUP A jojh hans local admin
GROUP A gege fans michel jing jong
#GROUP U belongs to USA
GROUP U jeff goal hello world
My requirement is to grep for first apperence of GROUP A which is not commented and append my name to end of file.... (12 Replies)
After I create printer queues in AIX, I have to append a filter file location within that printers custom file. within lets say test_queue.txt I need to find the row that starts with :699 and then I need to append on the end the string /usr/local/bin/k_portrait.sh.
Now I've gotten the sed... (2 Replies)
im trying to append to the end of the line using sed but I want to do it without creating a new line
the text to which I want to append is all in capital letters.
I want to do something like this:
LINE]Foo
but when I do this:
//a\
] Foo
it prints foo on a new line:
LINE
]Foo
... (11 Replies)
Hi,
I have a File, which have multiple rows.
Like below
123456 Test1 FNAME JRW#$% PB MO Approver XXXXXX. YYYY
123457 Test2 FNAME JRW#$% PB MO Super XXXXXX. YYYY
123458 Test3 FNAME JRW#$% PB MO Approver XXXXXX. YYYY
I want to search a line which contains PB MO Approver and append... (2 Replies)
Hi, I posted in another section, but no reply yet.
I have an ini file with sections denoted as follows (for example)
blah=blah
blee=blee
bloo=bloo
blur=blur
blaa=blaa
I have ksh script that needs to append a line ${line} to the end of section ${section}
I saw this... (7 Replies)
Hello.
I have a config file (/etc/my_config_file) which may content :
#
# port for HTTP (descriptions, SOAP, media transfer) traffic
port=8200
# network interfaces to serve, comma delimited
network_interface=eth0
# set this to the directory you want scanned.
# * if have multiple... (6 Replies)