I am relatively new to Shell Scripting. I can't understand the following two scripts. Can someone please spare a minute to explain?
1) content s of file a are
(021) 654-1234
sed 's/(//g;s/)//g;s/ /-/g' a
021-654-1234
2)cut -d: -f1,3,7 /etc/passwd |sort -t: +1n gives error (3 Replies)
Hi All;
Is there anybody can explain this script please?
trap 'C_logmsg "F" "CNTL/c OS signal trapped, Script ${G_SCRIPTNAME] terminated"; exit 1' 2
trap 'C_logmsg "F" "Kill Job Event sent from the Console, Script ${G_SCRIPTNAME] terminated"; exit 1' 15 (3 Replies)
Hi
i have one script and i am running it but not getting current output so i want to understand how to input in the script.
when i do help then i am getting below massage
thanks
got it (1 Reply)
I ran the following grep and sed command.
grep "\t" emp.txt
sed -n '/\t/p' emp.txt
grep treated the '\' as to escape t and took the pattern as literal t whereas sed took the pattern as tab.
That means , grep doesn't understand escape sequence!!!!!!
what to do to make grep... (8 Replies)
While working on awk programming, i found that it doesn't understand 'read' statement. Then what's the use of 'continue' and 'break' statement in awk.
For ex:
awk '{k=1; while (k<10) {print $0; k++}}' emp.lst
Now, please say if I want to put the logic that after priting 1 line, it will ask for... (13 Replies)
Hello world! Can someone please explain me how this code works? I'ts supposed to find words in a dictionary and show the anagrams of the words.
{
part = word2key($1)
data = $1
}
function word2key(word, a, i, x, result)
{
x = split(word, a, "")
asort(a)
... (1 Reply)
Please help me to understand the below 3 lines of code.execute shell in jenkins
1)APP_IP=$( docker inspect --format '{{ .NetworkSettings.Networks.'"$DOCKER_NETWORK_NAME"'.IPAddress }}' ${PROJECT_NAME_KEY}"-CI" )
2)HOST_WORKSPACE=$(echo ${WORKSPACE} | sed... (1 Reply)
#!/bin/awk -f
BEGIN {i=1;file="modified.txt"}
{
if ($0 !~ /^DS:/) {print $0 >> file} else {
if ($0 ~ /^DS:/) {print "DS: ",i >> file;if (i==8) {i=1} else {i++}};
}
}
END {gzip file}
Can someone explain to me how this above script works, I got it from a friend but not able... (3 Replies)
Discussion started by: Kamesh G
3 Replies
LEARN ABOUT ULTRIX
resize
resize(1X) MIT X11R4 resize(1X)Name
resize - utility to set TERMCAP and terminal settings to current window size
Syntax
resize [-u] [-s [row col]]
Description
The uitility prints a shell command for setting the TERM and TERMCAP environment variables to indicate the current size of xterm window
from which the command is run. For this output to take effect, resize must either be evaluated as part of the command line (usually done
with a shell alias or function) or else redirected to a file which can then be read in. From the C shell (usually known as /bin/csh), the
following alias could be defined in the user's .cshrc:
% alias rs 'set noglob; `eval resize`'
After resizing the window, the user would type:
% rs
Users of versions of the Bourne shell (usually known as /bin/sh) that do not have command functions will need to send the output to a tem-
porary file and the read it back in with the ``.'' command:
$ resize >/tmp/out
$ . /tmp/out
Options
The following options may be used with resize:
-u This option indicates that Bourne shell commands should be generated even if the user's current shell is not /bin/sh.
-c This option indicates that C shell commands should be generated even if the user's current shell is not /bin/csh.
-s [rows columns]
This option indicates that the Sun console escape sequences will be used instead of the special xterm escape code. If rows and col-
umns are given, resize will ask the xterm to resize itself. However, the window manager may choose to disallow the change.
Restrictions
The -u or -c must appear to the left of -s if both are specified.
There should be some global notion of display size; termcap and terminfo need to be rethought in the context of window systems. (Fixed in
4.3BSD, and ULTRIX-32 1.2)
Files
For the base termcap entry to modify.
User's alias for the command.
See Alsocsh(1), tset(1), xterm(1X)resize(1X)