I'm trying to find a command that will trim the white space off a string.
e.g.
$str = " stuf "
$str = trim ( $str )
echo $str // ouput would just be stuf
Thanks, Mark (4 Replies)
All,
I'm a newbie at shell scripting and regular expressions and I just need to take a file that's arranged like the one below, remove all leading and trailing whitespace and add a line break after each word. I've been able to remove a few spaces using various awk, sed and Perl scripts, but... (7 Replies)
Hi Friends,
Can any one help with this issue:
How to trim spaces for each line at the end,
Like I have a file in this format.
EMP1 SMITH 46373 5 STREET HOWARD 74636
EMP2 JONES 5454 { these are spaces ........}
EMP3 SMITH 46373 5 STREET HOWARD 74636
EMP4 JON 2554 { these are... (1 Reply)
Hello,
I am passing a filename to a script to draw parameters from it. However, I want to use part of the filename as a parameter. The filename is transfer_ccf_3731_10.sh but I only need the 3731_10 part of it.
Is this possible? Any help or suggestions would be appreciated!
Regards,
J. (4 Replies)
Hi All,
I am using trim in my code..
ID_SA_SOURCE="`echo "$data" | cut -c17-34 | tr -s " "`"
ID_SA_DEST="`echo "$data" | cut -c35-52 | tr -s " "`"
echo"$ID_SA_SOURCE";"$ID_SA_DEST";
the output is
0608166896; 3001339; contains one whitespace between the two ..how can i remove that single... (3 Replies)
Hi all,
I've been looking for how to eliminate blank spaces in a variable or strings. I've seen several ways, using sed, awk and even python. One of them is use 'tr' command, but it does not work as I expected: For example:
echo " stuff " | tr -s " "leaves one space ahead and another... (3 Replies)
To trim 3rd field in for all the lines of a file and replace the modified string in that particular field.
For example i have a file called Temp.txt having content
Temp.txt
-----------------
100,234,M1234
400,234,K1734
300,345,T3456
----------------
So the modified file output should... (4 Replies)
FOLKS ,
i have a text file that is generated automatically of an another korn shell script, i want to bring in the fifth line of the text file in to my korn shell script and look for a particular word in the line . Can you all share some thoughts on this one.
thanks...
Venu (3 Replies)
Hi All,
I have a file named as
FAB1_600015_CONRAD.A0_7XYZ12345.000_LT-SWET.01_LTPA25L_20110622-161429_07_WFR12345_20110622-161429_20110712-125228.data.dis
I want to generate a directory taking only the 7XYZ12345.000_WFR12345
The length and format of the Filename will be the same... (2 Replies)
Discussion started by: asheshrocky
2 Replies
LEARN ABOUT MOJAVE
simple
Simple action in tc(8) Linux Simple action in tc(8)NAME
simple - basic example action
SYNOPSIS
tc ... action simple [ sdata STRING ] [ index INDEX ] [ CONTROL ]
CONTROL := { reclassify | pipe | drop | continue | ok }
DESCRIPTION
This is a pedagogical example rather than an actually useful action. Upon every access, it prints the given STRING which may be of arbi-
trary length.
OPTIONS
sdata STRING
The actual string to print.
index INDEX
Optional action index value.
CONTROL
Indicate how tc should proceed after executing the action. For a description of the possible CONTROL values, see tc-actions(8).
EXAMPLES
The following example makes the kernel yell "Incoming ICMP!" every time it sees an incoming ICMP on eth0. Steps are:
1) Add an ingress qdisc point to eth0
2) Start a chain on ingress of eth0 that first matches ICMP then invokes the simple action to shout.
3) display stats and show that no packet has been seen by the action
4) Send one ping packet to google (expect to receive a response back)
5) grep the logs to see the logged message
6) display stats again and observe increment by 1
hadi@noma1:$ tc qdisc add dev eth0 ingress
hadi@noma1:$tc filter add dev eth0 parent ffff: protocol ip prio 5
u32 match ip protocol 1 0xff flowid 1:1 action simple sdata "Incoming ICMP"
hadi@noma1:$ sudo tc -s filter ls dev eth0 parent ffff:
filter protocol ip pref 5 u32
filter protocol ip pref 5 u32 fh 800: ht divisor 1
filter protocol ip pref 5 u32 fh 800::800 order 2048 key ht 800 bkt 0 flowid 1:1
match 00010000/00ff0000 at 8
action order 1: Simple <Incoming ICMP>
index 4 ref 1 bind 1 installed 29 sec used 29 sec
Action statistics:
Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
backlog 0b 0p requeues 0
hadi@noma1$ ping -c 1 www.google.ca
PING www.google.ca (74.125.225.120) 56(84) bytes of data.
64 bytes from ord08s08-in-f24.1e100.net (74.125.225.120): icmp_req=1 ttl=53 time=31.3 ms
--- www.google.ca ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 31.316/31.316/31.316/0.000 ms
hadi@noma1$ dmesg | grep simple
[135354.473951] simple: Incoming ICMP_1
hadi@noma1$ sudo tc/tc -s filter ls dev eth0 parent ffff:
filter protocol ip pref 5 u32
filter protocol ip pref 5 u32 fh 800: ht divisor 1
filter protocol ip pref 5 u32 fh 800::800 order 2048 key ht 800 bkt 0 flowid 1:1
match 00010000/00ff0000 at 8
action order 1: Simple <Incoming ICMP>
index 4 ref 1 bind 1 installed 206 sec used 67 sec
Action statistics:
Sent 84 bytes 1 pkt (dropped 0, overlimits 0 requeues 0)
backlog 0b 0p requeues 0
SEE ALSO tc(8)tc-actions(8)iproute2 12 Jan 2015 Simple action in tc(8)