02-28-2013
The cat utility is being asked to read a file; the source utility is being asked to execute a file. When you execute a file, lots of additional processing is invoked to find the file to be executed (alias searches, $PATH searches, ...) that is not done when you are just reading a file.
This User Gave Thanks to Don Cragun For This Post:
10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
Hi,
i want to make alias for rm command. It should actually move the file to a directory in my home.
Say if i type
%rm abc.txt
the command should expand to
%mv abc.txt ~ashishp/trash
How should I write the alias for this?
-Ashish (8 Replies)
Discussion started by: shriashishpatil
8 Replies
2. UNIX for Dummies Questions & Answers
I installed Red Hat Enterprise Linux 5 on my PC. When i typed 'emacs' on the console, "command not found" error occurrd. Why.
:mad: (1 Reply)
Discussion started by: cy163
1 Replies
3. Shell Programming and Scripting
Dear all,
When I tried to run receive.sh,it returned following errors.
syntax error near unexpected token `do
#!/usr/bin/ksh
GlobalValueReceive=r
GlobalValueWorking=w
GlobalValueTemp=t
$exec 0<Property
while read LineInProperty
do
if
then
$GlobalValueReceive =... (8 Replies)
Discussion started by: joshuaduan
8 Replies
4. UNIX for Advanced & Expert Users
Hi
'm executing a java program from my shell script on solaris 9 as
$JAVA_HOME\bin\java -ms32m -mx128m -classpath $CLASSPATH com.abc.fwk,abcServer.abcfwkServer $1 &
where $1 is port number
when i do ps -ef, it shows whole command , i want to give this some alias name as abcProcess, so... (2 Replies)
Discussion started by: b_garima
2 Replies
5. UNIX for Dummies Questions & Answers
Hello,
in my .bashrc I tried to setup some aliases.
alias scp_cmd="scp -P 8888 $1 me@somehost:."
is supposed to copy a local file to somehost via scp. However it seems that the command line substitution does not work here. However this works:
alias lst="ls -l $1"
The above scp command can... (1 Reply)
Discussion started by: strobotta
1 Replies
6. Shell Programming and Scripting
Hi.
I´ve a script that should substitude the 8th line in a file called xxx.num6.
The "xxx" is set by an array filled with this command:
j=0
for Par in *.sys ; do
Par=`echo $Par | sed 's/\(.*\).sys/\1/'` ;
Par2="$Par" ; echo "${Par2}"
j=$((j + 1));
done
Now i try... (0 Replies)
Discussion started by: Lock3
0 Replies
7. UNIX for Dummies Questions & Answers
I know this script is crummy, but I was just messing around.. how do I get sed's insert command to allow variable expansion to show the filename?
#!/bin/bash
filename=`echo $0`
/usr/bin/sed '/#include/ {
i\
the filename is `$filename`
}' $1
exit 0 (8 Replies)
Discussion started by: glev2005
8 Replies
8. UNIX for Dummies Questions & Answers
Hi:
How can I remove my own post?
Thanks. (2 Replies)
Discussion started by: phil518
2 Replies
9. UNIX for Dummies Questions & Answers
Hey, guys!
Trying to research this is such a pain since the read command itself is a common word. Try searching "unix OR linux read command examples" or using the command substitution keyword. :eek:
So, I wanted to use a command statement similar to the following.
This is kinda taken... (2 Replies)
Discussion started by: ProGrammar
2 Replies
10. Shell Programming and Scripting
Hello,
I'm attempting to configure shell settings in my new Macbook. The standard unix command line 'alias' doesn't seem to be working:
bash-3.2$ alias dir ls -la
bash: alias: dir: not found
bash: alias: ls: not found
bash: alias: -la: not found
bash-3.2$ alias dir 'ls -la'
bash:... (1 Reply)
Discussion started by: palex
1 Replies
GZEXE(1) General Commands Manual GZEXE(1)
NAME
gzexe - compress executable files in place
SYNOPSIS
gzexe [ name ... ]
DESCRIPTION
The gzexe utility allows you to compress executables in place and have them automatically uncompress and execute when you run them (at a
penalty in performance). For example if you execute ``gzexe /bin/cat'' it will create the following two files:
-r-xr-xr-x 1 root bin 9644 Feb 11 11:16 /bin/cat
-r-xr-xr-x 1 bin bin 24576 Nov 23 13:21 /bin/cat~
/bin/cat~ is the original file and /bin/cat is the self-uncompressing executable file. You can remove /bin/cat~ once you are sure that
/bin/cat works properly.
This utility is most useful on systems with very small disks.
OPTIONS
-d Decompress the given executables instead of compressing them.
SEE ALSO
gzip(1), znew(1), zmore(1), zcmp(1), zforce(1)
CAVEATS
The compressed executable is a shell script. This may create some security holes. In particular, the compressed executable relies on the
PATH environment variable to find gzip and some other utilities (tail, chmod, ln, sleep).
BUGS
gzexe attempts to retain the original file attributes on the compressed executable, but you may have to fix them manually in some cases,
using chmod or chown.
GZEXE(1)