Note that GNU grep uses the glibc RE engine that has got some perl extensions (PRE). \b is such an addition.
GNU grep needs an (also nonstandard) \| for OR while | is standard for ERE (egrep or grep -E).
So you can write either
or
Both need GNU grep and glibc.
A bit more spread (but also no standard) are \< and \> (left and right word boundary) for grep (not egrep).
Standard (portable) are
(multi-line)
I am trying to check two variables and if both are blank I want to set a flag:
the_f3_pid=`rsh $target ps -ef | grep "f3.eab" | awk '{print $2}'`
the_f7_pid=`rsh $target ps -ef | grep "f7.eab" | awk '{print $2}'`
if ; then
y=1
fi
I get an error:
./script_name: test: 0403-021 ]... (4 Replies)
hi,
i was trying to club to test condition with if.
if -o ; then
it is giving me error message, i wanted to ask how can we check two condtions with one if. (1 Reply)
Hi I've been searching google and have not found what egrep -c means. Does anyone know where I can get a cheat sheet or what that -c means?
thanks,
Linda (2 Replies)
Hi Guys,
we have a shell script which basically query the Database which retrieves huge data and use the data with "egrep" .
Now there is some data which contains characters like "abc)" and the same is used like below :
"egrep (.+\|GDPRAB16\|GDPR/11702 96 abc)\|$ temp.txt"
now while... (7 Replies)
Hi
I want to group
like this but syntactic is not right ...
Thanks
if
Like this below does not work properly ..
if
then
:
else
usage
exit 1
fi (5 Replies)
Hi,
Please clear the 2 questions,
2 Questions,
1) Why the new as a operator? Is there any special reason why it can't be a function like malloc?
2) How are we considering sizeof(),new are as a opearartors? I know + - * / -> , . etc.. are operators, which criteria satisfied by sizeof()... (4 Replies)
All,
THe below is my script , when i use this i am getting nothing . could any one help me to know what is the use of the << operator below
su - $8 << supo
echo "exportsph $2 $1 $3 $4"
exportsph $2 $1 $3 $4
supo
i also tried as individual command su - userid << supo , when i do... (3 Replies)
im new to bash scripting and im just using online tutorials and trial and error. i wanted to write a script to read numbers from a file and find their sum:
#!/bin/bash
theSum=0
for line in $(cat numbers.txt)
do
let "theSum = theSum + $line"
echo "$line"
done
echo "The sum is... (3 Replies)
In my script (currently running on Solaris ) I'm testing for zero size with wild character. There are mutilple files exist in the directory.
if
then
filename=`ls -1tr ${fileformat}.${date}.? | tail -1`
else
${BATCH_FATAL:-echo} "$0:ERROR:No file found ${source}/${fileformat}.${date}.?"... (5 Replies)
Discussion started by: gauravgoel83
5 Replies
LEARN ABOUT REDHAT
set_color
set_color(1) fish set_color(1)NAME
set_color - set_color - set the terminal color
set_color - set the terminal color
Synopsis
set_color [-v --version] [-h --help] [-b --background COLOR] [COLOR]
Description
Change the foreground and/or background color of the terminal. COLOR is one of black, red, green, brown, yellow, blue, magenta, purple,
cyan, white and normal.
o -b, --background Set the background color
o -c, --print-colors Prints a list of all valid color names
o -h, --help Display help message and exit
o -o, --bold Set bold or extra bright mode
o -u, --underline Set underlined mode
o -v, --version Display version and exit
Calling set_color normal will set the terminal color to whatever is the default color of the terminal.
Some terminals use the --bold escape sequence to switch to a brighter color set. On such terminals, set_color white will result in a grey
font color, while set_color --bold white will result in a white font color.
Not all terminal emulators support all these features. This is not a bug in set_color but a missing feature in the terminal emulator.
set_color uses the terminfo database to look up how to change terminal colors on whatever terminal is in use. Some systems have old and
incomplete terminfo databases, and may lack color information for terminals that support it. Download and install the latest version of
ncurses and recompile fish against it in order to fix this issue.
Version 1.23.1 Sun Jan 8 2012 set_color(1)